/
common.lib.php
3946 lines (3622 loc) · 129 KB
/
common.lib.php
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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Misc functions used all over the scripts.
*
* @package PhpMyAdmin
*/
/**
* Detects which function to use for PMA_pow.
*
* @return string Function name.
*/
function PMA_detect_pow()
{
if (function_exists('bcpow')) {
// BCMath Arbitrary Precision Mathematics Function
return 'bcpow';
} elseif (function_exists('gmp_pow')) {
// GMP Function
return 'gmp_pow';
} else {
// PHP function
return 'pow';
}
}
/**
* Exponential expression / raise number into power
*
* @param string $base base to raise
* @param string $exp exponent to use
* @param mixed $use_function pow function to use, or false for auto-detect
*
* @return mixed string or float
*/
function PMA_pow($base, $exp, $use_function = false)
{
static $pow_function = null;
if (null == $pow_function) {
$pow_function = PMA_detect_pow();
}
if (! $use_function) {
$use_function = $pow_function;
}
if ($exp < 0 && 'pow' != $use_function) {
return false;
}
switch ($use_function) {
case 'bcpow' :
// bcscale() needed for testing PMA_pow() with base values < 1
bcscale(10);
$pow = bcpow($base, $exp);
break;
case 'gmp_pow' :
$pow = gmp_strval(gmp_pow($base, $exp));
break;
case 'pow' :
$base = (float) $base;
$exp = (int) $exp;
$pow = pow($base, $exp);
break;
default:
$pow = $use_function($base, $exp);
}
return $pow;
}
/**
* Returns an HTML IMG tag for a particular icon from a theme,
* which may be an actual file or an icon from a sprite.
* This function takes into account the PropertiesIconic
* configuration setting and wraps the image tag in a span tag.
*
* @param string $icon name of icon file
* @param string $alternate alternate text
* @param boolean $force_text whether to force alternate text to be displayed
*
* @return string an html snippet
*/
function PMA_getIcon($icon, $alternate = '', $force_text = false)
{
// $cfg['PropertiesIconic'] is true or both
$include_icon = ($GLOBALS['cfg']['PropertiesIconic'] !== false);
// $cfg['PropertiesIconic'] is false or both
// OR we have no $include_icon
$include_text = ($force_text || true !== $GLOBALS['cfg']['PropertiesIconic']);
// Always use a span (we rely on this in js/sql.js)
$button = '<span class="nowrap">';
if ($include_icon) {
$button .= PMA_getImage($icon, $alternate);
}
if ($include_icon && $include_text) {
$button .= ' ';
}
if ($include_text) {
$button .= $alternate;
}
$button .= '</span>';
return $button;
}
/**
* Returns an HTML IMG tag for a particular image from a theme,
* which may be an actual file or an icon from a sprite
*
* @param string $image The name of the file to get
* @param string $alternate Used to set 'alt' and 'title' attributes of the image
* @param array $attributes An associative array of other attributes
*
* @return string an html IMG tag
*/
function PMA_getImage($image, $alternate = '', $attributes = array())
{
static $sprites; // cached list of available sprites (if any)
$url = '';
$is_sprite = false;
$alternate = htmlspecialchars($alternate);
// If it's the first time this function is called
if (! isset($sprites)) {
// Try to load the list of sprites
if (is_readable($_SESSION['PMA_Theme']->getPath() . '/sprites.lib.php')) {
include_once $_SESSION['PMA_Theme']->getPath() . '/sprites.lib.php';
$sprites = PMA_sprites();
} else {
// No sprites are available for this theme
$sprites = array();
}
}
// Check if we have the requested image as a sprite
// and set $url accordingly
$class = str_replace(array('.gif','.png'), '', $image);
if (array_key_exists($class, $sprites)) {
$is_sprite = true;
$url = (defined('PMA_TEST_THEME') ? '../' : '') . 'themes/dot.gif';
} else {
$url = $GLOBALS['pmaThemeImage'] . $image;
}
// set class attribute
if ($is_sprite) {
if (isset($attributes['class'])) {
$attributes['class'] = "icon ic_$class " . $attributes['class'];
} else {
$attributes['class'] = "icon ic_$class";
}
}
// set all other attributes
$attr_str = '';
foreach ($attributes as $key => $value) {
if (! in_array($key, array('alt', 'title'))) {
$attr_str .= " $key=\"$value\"";
}
}
// override the alt attribute
if (isset($attributes['alt'])) {
$alt = $attributes['alt'];
} else {
$alt = $alternate;
}
// override the title attribute
if (isset($attributes['title'])) {
$title = $attributes['title'];
} else {
$title = $alternate;
}
// generate the IMG tag
$template = '<img src="%s" title="%s" alt="%s"%s />';
$retval = sprintf($template, $url, $title, $alt, $attr_str);
return $retval;
}
/**
* Displays the maximum size for an upload
*
* @param integer $max_upload_size the size
*
* @return string the message
*
* @access public
*/
function PMA_displayMaximumUploadSize($max_upload_size)
{
// I have to reduce the second parameter (sensitiveness) from 6 to 4
// to avoid weird results like 512 kKib
list($max_size, $max_unit) = PMA_formatByteDown($max_upload_size, 4);
return '(' . sprintf(__('Max: %s%s'), $max_size, $max_unit) . ')';
}
/**
* Generates a hidden field which should indicate to the browser
* the maximum size for upload
*
* @param integer $max_size the size
*
* @return string the INPUT field
*
* @access public
*/
function PMA_generateHiddenMaxFileSize($max_size)
{
return '<input type="hidden" name="MAX_FILE_SIZE" value="' .$max_size . '" />';
}
/**
* Add slashes before "'" and "\" characters so a value containing them can
* be used in a sql comparison.
*
* @param string $a_string the string to slash
* @param bool $is_like whether the string will be used in a 'LIKE' clause
* (it then requires two more escaped sequences) or not
* @param bool $crlf whether to treat cr/lfs as escape-worthy entities
* (converts \n to \\n, \r to \\r)
* @param bool $php_code whether this function is used as part of the
* "Create PHP code" dialog
*
* @return string the slashed string
*
* @access public
*/
function PMA_sqlAddSlashes($a_string = '', $is_like = false, $crlf = false,
$php_code = false
) {
if ($is_like) {
$a_string = str_replace('\\', '\\\\\\\\', $a_string);
} else {
$a_string = str_replace('\\', '\\\\', $a_string);
}
if ($crlf) {
$a_string = strtr(
$a_string,
array("\n" => '\n', "\r" => '\r', "\t" => '\t')
);
}
if ($php_code) {
$a_string = str_replace('\'', '\\\'', $a_string);
} else {
$a_string = str_replace('\'', '\'\'', $a_string);
}
return $a_string;
} // end of the 'PMA_sqlAddSlashes()' function
/**
* Add slashes before "_" and "%" characters for using them in MySQL
* database, table and field names.
* Note: This function does not escape backslashes!
*
* @param string $name the string to escape
*
* @return string the escaped string
*
* @access public
*/
function PMA_escape_mysql_wildcards($name)
{
return strtr($name, array('_' => '\\_', '%' => '\\%'));
} // end of the 'PMA_escape_mysql_wildcards()' function
/**
* removes slashes before "_" and "%" characters
* Note: This function does not unescape backslashes!
*
* @param string $name the string to escape
*
* @return string the escaped string
*
* @access public
*/
function PMA_unescape_mysql_wildcards($name)
{
return strtr($name, array('\\_' => '_', '\\%' => '%'));
} // end of the 'PMA_unescape_mysql_wildcards()' function
/**
* removes quotes (',",`) from a quoted string
*
* checks if the sting is quoted and removes this quotes
*
* @param string $quoted_string string to remove quotes from
* @param string $quote type of quote to remove
*
* @return string unqoted string
*/
function PMA_unQuote($quoted_string, $quote = null)
{
$quotes = array();
if (null === $quote) {
$quotes[] = '`';
$quotes[] = '"';
$quotes[] = "'";
} else {
$quotes[] = $quote;
}
foreach ($quotes as $quote) {
if (substr($quoted_string, 0, 1) === $quote
&& substr($quoted_string, -1, 1) === $quote
) {
$unquoted_string = substr($quoted_string, 1, -1);
// replace escaped quotes
$unquoted_string = str_replace(
$quote . $quote,
$quote,
$unquoted_string
);
return $unquoted_string;
}
}
return $quoted_string;
}
/**
* format sql strings
*
* @param mixed $parsed_sql pre-parsed SQL structure
* @param string $unparsed_sql raw SQL string
*
* @return string the formatted sql
*
* @global array the configuration array
* @global boolean whether the current statement is a multiple one or not
*
* @access public
* @todo move into PMA_Sql
*/
function PMA_formatSql($parsed_sql, $unparsed_sql = '')
{
global $cfg;
// Check that we actually have a valid set of parsed data
// well, not quite
// first check for the SQL parser having hit an error
if (PMA_SQP_isError()) {
return htmlspecialchars($parsed_sql['raw']);
}
// then check for an array
if (! is_array($parsed_sql)) {
// We don't so just return the input directly
// This is intended to be used for when the SQL Parser is turned off
$formatted_sql = "<pre>\n";
if ($cfg['SQP']['fmtType'] == 'none' && $unparsed_sql != '') {
$formatted_sql .= $unparsed_sql;
} else {
$formatted_sql .= $parsed_sql;
}
$formatted_sql .= "\n</pre>";
return $formatted_sql;
}
$formatted_sql = '';
switch ($cfg['SQP']['fmtType']) {
case 'none':
if ($unparsed_sql != '') {
$formatted_sql = '<span class="inner_sql"><pre>' . "\n"
. PMA_SQP_formatNone(array('raw' => $unparsed_sql)) . "\n"
. '</pre></span>';
} else {
$formatted_sql = PMA_SQP_formatNone($parsed_sql);
}
break;
case 'html':
$formatted_sql = PMA_SQP_formatHtml($parsed_sql, 'color');
break;
case 'text':
$formatted_sql = PMA_SQP_formatHtml($parsed_sql, 'text');
break;
default:
break;
} // end switch
return $formatted_sql;
} // end of the "PMA_formatSql()" function
/**
* Displays a link to the documentation as an icon
*
* @param string $link documentation link
* @param string $target optional link target
*
* @return string the html link
*
* @access public
*/
function PMA_showDocLink($link, $target = 'documentation')
{
return '<a href="' . $link . '" target="' . $target . '">'
. PMA_getImage('b_help.png', __('Documentation'))
. '</a>';
} // end of the 'PMA_showDocLink()' function
/**
* Displays a link to the official MySQL documentation
*
* @param string $chapter chapter of "HTML, one page per chapter" documentation
* @param string $link contains name of page/anchor that is being linked
* @param bool $big_icon whether to use big icon (like in left frame)
* @param string $anchor anchor to page part
* @param bool $just_open whether only the opening <a> tag should be returned
*
* @return string the html link
*
* @access public
*/
function PMA_showMySQLDocu($chapter, $link, $big_icon = false, $anchor = '',
$just_open = false
) {
global $cfg;
if ($cfg['MySQLManualType'] == 'none' || empty($cfg['MySQLManualBase'])) {
return '';
}
// Fixup for newly used names:
$chapter = str_replace('_', '-', strtolower($chapter));
$link = str_replace('_', '-', strtolower($link));
switch ($cfg['MySQLManualType']) {
case 'chapters':
if (empty($chapter)) {
$chapter = 'index';
}
if (empty($anchor)) {
$anchor = $link;
}
$url = $cfg['MySQLManualBase'] . '/' . $chapter . '.html#' . $anchor;
break;
case 'big':
if (empty($anchor)) {
$anchor = $link;
}
$url = $cfg['MySQLManualBase'] . '#' . $anchor;
break;
case 'searchable':
if (empty($link)) {
$link = 'index';
}
$url = $cfg['MySQLManualBase'] . '/' . $link . '.html';
if (! empty($anchor)) {
$url .= '#' . $anchor;
}
break;
case 'viewable':
default:
if (empty($link)) {
$link = 'index';
}
$mysql = '5.0';
$lang = 'en';
if (defined('PMA_MYSQL_INT_VERSION')) {
if (PMA_MYSQL_INT_VERSION >= 50500) {
$mysql = '5.5';
/* l10n: Please check that translation actually exists. */
$lang = _pgettext('MySQL 5.5 documentation language', 'en');
} else if (PMA_MYSQL_INT_VERSION >= 50100) {
$mysql = '5.1';
/* l10n: Please check that translation actually exists. */
$lang = _pgettext('MySQL 5.1 documentation language', 'en');
} else {
$mysql = '5.0';
/* l10n: Please check that translation actually exists. */
$lang = _pgettext('MySQL 5.0 documentation language', 'en');
}
}
$url = $cfg['MySQLManualBase']
. '/' . $mysql . '/' . $lang . '/' . $link . '.html';
if (! empty($anchor)) {
$url .= '#' . $anchor;
}
break;
}
$open_link = '<a href="' . PMA_linkURL($url) . '" target="mysql_doc">';
if ($just_open) {
return $open_link;
} elseif ($big_icon) {
return $open_link
. PMA_getImage('b_sqlhelp.png', __('Documentation')) . '</a>';
} else {
return PMA_showDocLink(PMA_linkURL($url), 'mysql_doc');
}
} // end of the 'PMA_showMySQLDocu()' function
/**
* Displays a link to the phpMyAdmin documentation
*
* @param string $anchor anchor in documentation
*
* @return string the html link
*
* @access public
*/
function PMA_showDocu($anchor)
{
return PMA_showDocLink('Documentation.html#' . $anchor);
} // end of the 'PMA_showDocu()' function
/**
* Displays a link to the PHP documentation
*
* @param string $target anchor in documentation
*
* @return string the html link
*
* @access public
*/
function PMA_showPHPDocu($target)
{
$url = PMA_getPHPDocLink($target);
return PMA_showDocLink($url);
} // end of the 'PMA_showPHPDocu()' function
/**
* returns HTML for a footnote marker and add the messsage to the footnotes
*
* @param string $message the error message
* @param bool $bbcode
* @param string $type message types
*
* @return string html code for a footnote marker
*
* @access public
*/
function PMA_showHint($message, $bbcode = false, $type = 'notice')
{
if ($message instanceof PMA_Message) {
$key = $message->getHash();
$type = $message->getLevel();
} else {
$key = md5($message);
}
if (! isset($GLOBALS['footnotes'][$key])) {
if (empty($GLOBALS['footnotes']) || ! is_array($GLOBALS['footnotes'])) {
$GLOBALS['footnotes'] = array();
}
$nr = count($GLOBALS['footnotes']) + 1;
$GLOBALS['footnotes'][$key] = array(
'note' => $message,
'type' => $type,
'nr' => $nr,
);
} else {
$nr = $GLOBALS['footnotes'][$key]['nr'];
}
if ($bbcode) {
return '[sup]' . $nr . '[/sup]';
}
// footnotemarker used in js/tooltip.js
return '<sup class="footnotemarker">' . $nr . '</sup>'
. PMA_getImage(
'b_help.png', '',
array('class' => 'footnotemarker footnote_' . $nr)
);
}
/**
* Displays a MySQL error message in the right frame.
*
* @param string $error_message the error message
* @param string $the_query the sql query that failed
* @param bool $is_modify_link whether to show a "modify" link or not
* @param string $back_url the "back" link url (full path is not required)
* @param bool $exit EXIT the page?
*
* @return void
*
* @global string the curent table
* @global string the current db
*
* @access public
*/
function PMA_mysqlDie(
$error_message = '', $the_query = '',
$is_modify_link = true, $back_url = '', $exit = true
) {
global $table, $db;
/**
* start http output, display html headers
*/
include_once './libraries/header.inc.php';
$error_msg_output = '';
if (! $error_message) {
$error_message = PMA_DBI_getError();
}
if (! $the_query && ! empty($GLOBALS['sql_query'])) {
$the_query = $GLOBALS['sql_query'];
}
// --- Added to solve bug #641765
if (! function_exists('PMA_SQP_isError') || PMA_SQP_isError()) {
$formatted_sql = htmlspecialchars($the_query);
} elseif (empty($the_query) || trim($the_query) == '') {
$formatted_sql = '';
} else {
if (strlen($the_query) > $GLOBALS['cfg']['MaxCharactersInDisplayedSQL']) {
$formatted_sql = htmlspecialchars(
substr($the_query, 0, $GLOBALS['cfg']['MaxCharactersInDisplayedSQL'])
)
. '[...]';
} else {
$formatted_sql = PMA_formatSql(PMA_SQP_parse($the_query), $the_query);
}
}
// ---
$error_msg_output .= "\n" . '<!-- PMA-SQL-ERROR -->' . "\n";
$error_msg_output .= ' <div class="error"><h1>' . __('Error')
. '</h1>' . "\n";
// if the config password is wrong, or the MySQL server does not
// respond, do not show the query that would reveal the
// username/password
if (! empty($the_query) && ! strstr($the_query, 'connect')) {
// --- Added to solve bug #641765
if (function_exists('PMA_SQP_isError') && PMA_SQP_isError()) {
$error_msg_output .= PMA_SQP_getErrorString() . "\n";
$error_msg_output .= '<br />' . "\n";
}
// ---
// modified to show the help on sql errors
$error_msg_output .= ' <p><strong>' . __('SQL query') . ':</strong>' . "\n";
if (strstr(strtolower($formatted_sql), 'select')) {
// please show me help to the error on select
$error_msg_output .= PMA_showMySQLDocu('SQL-Syntax', 'SELECT');
}
if ($is_modify_link) {
$_url_params = array(
'sql_query' => $the_query,
'show_query' => 1,
);
if (strlen($table)) {
$_url_params['db'] = $db;
$_url_params['table'] = $table;
$doedit_goto = '<a href="tbl_sql.php'
. PMA_generate_common_url($_url_params) . '">';
} elseif (strlen($db)) {
$_url_params['db'] = $db;
$doedit_goto = '<a href="db_sql.php'
. PMA_generate_common_url($_url_params) . '">';
} else {
$doedit_goto = '<a href="server_sql.php'
. PMA_generate_common_url($_url_params) . '">';
}
$error_msg_output .= $doedit_goto
. PMA_getIcon('b_edit.png', __('Edit'))
. '</a>';
} // end if
$error_msg_output .= ' </p>' . "\n"
.' <p>' . "\n"
.' ' . $formatted_sql . "\n"
.' </p>' . "\n";
} // end if
if (! empty($error_message)) {
$error_message = preg_replace(
"@((\015\012)|(\015)|(\012)){3,}@",
"\n\n",
$error_message
);
}
// modified to show the help on error-returns
// (now error-messages-server)
$error_msg_output .= '<p>' . "\n"
. ' <strong>' . __('MySQL said: ') . '</strong>'
. PMA_showMySQLDocu('Error-messages-server', 'Error-messages-server')
. "\n"
. '</p>' . "\n";
// The error message will be displayed within a CODE segment.
// To preserve original formatting, but allow wordwrapping,
// we do a couple of replacements
// Replace all non-single blanks with their HTML-counterpart
$error_message = str_replace(' ', ' ', $error_message);
// Replace TAB-characters with their HTML-counterpart
$error_message = str_replace("\t", ' ', $error_message);
// Replace linebreaks
$error_message = nl2br($error_message);
$error_msg_output .= '<code>' . "\n"
. $error_message . "\n"
. '</code><br />' . "\n";
$error_msg_output .= '</div>';
$_SESSION['Import_message']['message'] = $error_msg_output;
if ($exit) {
/**
* If in an Ajax request
* - avoid displaying a Back link
* - use PMA_ajaxResponse() to transmit the message and exit
*/
if ($GLOBALS['is_ajax_request'] == true) {
PMA_ajaxResponse($error_msg_output, false);
}
if (! empty($back_url)) {
if (strstr($back_url, '?')) {
$back_url .= '&no_history=true';
} else {
$back_url .= '?no_history=true';
}
$_SESSION['Import_message']['go_back_url'] = $back_url;
$error_msg_output .= '<fieldset class="tblFooters">';
$error_msg_output .= '[ <a href="' . $back_url . '">' . __('Back') . '</a> ]';
$error_msg_output .= '</fieldset>' . "\n\n";
}
echo $error_msg_output;
/**
* display footer and exit
*/
include './libraries/footer.inc.php';
} else {
echo $error_msg_output;
}
} // end of the 'PMA_mysqlDie()' function
/**
* returns array with tables of given db with extended information and grouped
*
* @param string $db name of db
* @param string $tables name of tables
* @param integer $limit_offset list offset
* @param int|bool $limit_count max tables to return
*
* @return array (recursive) grouped table list
*/
function PMA_getTableList($db, $tables = null, $limit_offset = 0,
$limit_count = false
) {
$sep = $GLOBALS['cfg']['LeftFrameTableSeparator'];
if (null === $tables) {
$tables = PMA_DBI_get_tables_full(
$db, false, false, null, $limit_offset, $limit_count
);
if ($GLOBALS['cfg']['NaturalOrder']) {
uksort($tables, 'strnatcasecmp');
}
}
if (count($tables) < 1) {
return $tables;
}
$default = array(
'Name' => '',
'Rows' => 0,
'Comment' => '',
'disp_name' => '',
);
$table_groups = array();
// load PMA configuration
$PMA_Config = $GLOBALS['PMA_Config'];
foreach ($tables as $table_name => $table) {
// check for correct row count
if (null === $table['Rows']) {
// Do not check exact row count here,
// if row count is invalid possibly the table is defect
// and this would break left frame;
// but we can check row count if this is a view or the
// information_schema database
// since PMA_Table::countRecords() returns a limited row count
// in this case.
// set this because PMA_Table::countRecords() can use it
$tbl_is_view = $table['TABLE_TYPE'] == 'VIEW';
if ($tbl_is_view || PMA_is_system_schema($db)) {
$table['Rows'] = PMA_Table::countRecords($db, $table['Name'], false, true);
}
}
// in $group we save the reference to the place in $table_groups
// where to store the table info
if ($GLOBALS['cfg']['LeftFrameDBTree']
&& $sep && strstr($table_name, $sep)
) {
$parts = explode($sep, $table_name);
$group =& $table_groups;
$i = 0;
$group_name_full = '';
$parts_cnt = count($parts) - 1;
while ($i < $parts_cnt
&& $i < $GLOBALS['cfg']['LeftFrameTableLevel']) {
$group_name = $parts[$i] . $sep;
$group_name_full .= $group_name;
if (! isset($group[$group_name])) {
$group[$group_name] = array();
$group[$group_name]['is' . $sep . 'group'] = true;
$group[$group_name]['tab' . $sep . 'count'] = 1;
$group[$group_name]['tab' . $sep . 'group'] = $group_name_full;
} elseif (! isset($group[$group_name]['is' . $sep . 'group'])) {
$table = $group[$group_name];
$group[$group_name] = array();
$group[$group_name][$group_name] = $table;
unset($table);
$group[$group_name]['is' . $sep . 'group'] = true;
$group[$group_name]['tab' . $sep . 'count'] = 1;
$group[$group_name]['tab' . $sep . 'group'] = $group_name_full;
} else {
$group[$group_name]['tab' . $sep . 'count']++;
}
$group =& $group[$group_name];
$i++;
}
} else {
if (! isset($table_groups[$table_name])) {
$table_groups[$table_name] = array();
}
$group =& $table_groups;
}
if ($GLOBALS['cfg']['ShowTooltipAliasTB']
&& $GLOBALS['cfg']['ShowTooltipAliasTB'] !== 'nested'
&& $table['Comment'] // do not switch if the comment is empty
&& $table['Comment'] != 'VIEW' // happens in MySQL 5.1
) {
// switch tooltip and name
$table['disp_name'] = $table['Comment'];
$table['Comment'] = $table['Name'];
} else {
$table['disp_name'] = $table['Name'];
}
$group[$table_name] = array_merge($default, $table);
}
return $table_groups;
}
/* ----------------------- Set of misc functions ----------------------- */
/**
* Adds backquotes on both sides of a database, table or field name.
* and escapes backquotes inside the name with another backquote
*
* example:
* <code>
* echo PMA_backquote('owner`s db'); // `owner``s db`
*
* </code>
*
* @param mixed $a_name the database, table or field name to "backquote"
* or array of it
* @param boolean $do_it a flag to bypass this function (used by dump
* functions)
*
* @return mixed the "backquoted" database, table or field name
*
* @access public
*/
function PMA_backquote($a_name, $do_it = true)
{
if (is_array($a_name)) {
foreach ($a_name as &$data) {
$data = PMA_backquote($data, $do_it);
}
return $a_name;
}
if (! $do_it) {
global $PMA_SQPdata_forbidden_word;
if (! in_array(strtoupper($a_name), $PMA_SQPdata_forbidden_word)) {
return $a_name;
}
}
// '0' is also empty for php :-(
if (strlen($a_name) && $a_name !== '*') {
return '`' . str_replace('`', '``', $a_name) . '`';
} else {
return $a_name;
}
} // end of the 'PMA_backquote()' function
/**
* Does the exact opposite of PMA_backquote()
* Unescapes backquotes ( from double backquotes to single backquotes) and
* removes backquotes on both sides of the unescaped database name
*
* example:
* <code>
* echo PMA_removeBackquote('`owner``s db`'); // owner`s db
*
* </code>
*
* @param mixed $a_name the "backquoted" database, table or field name
* or array of it
*
* @return mixed the "backquoted" database, table or field name
*
* @access public
*/
function PMA_removeBackquote($a_name)
{
if (is_array($a_name)) {
foreach ($a_name as &$data) {
$data = PMA_removeBackquote($data);
}
return $a_name;
}
// '0' is also empty for php :-(
if (strlen($a_name) && $a_name !== '*') {
$a_name = str_replace('``', '`', $a_name);
// remove ` from beginning and end
return substr($a_name, 1, strlen($a_name) - 2);
} else {
return $a_name;
}
} // end of the 'PMA_removeBackquote()' function
/**
* Defines the <CR><LF> value depending on the user OS.
*
* @return string the <CR><LF> value to use
*
* @access public
*/
function PMA_whichCrlf()
{
// The 'PMA_USR_OS' constant is defined in "libraries/Config.class.php"
// Win case
if (PMA_USR_OS == 'Win') {
$the_crlf = "\r\n";
} else {
// Others
$the_crlf = "\n";
}
return $the_crlf;
} // end of the 'PMA_whichCrlf()' function
/**
* Reloads navigation if needed.
*
* @param bool $jsonly prints out pure JavaScript
*
* @return void
*
* @access public
*/
function PMA_reloadNavigation($jsonly=false)
{
// Reloads the navigation frame via JavaScript if required
if (isset($GLOBALS['reload']) && $GLOBALS['reload']) {
// one of the reasons for a reload is when a table is dropped
// in this case, get rid of the table limit offset, otherwise
// we have a problem when dropping a table on the last page
// and the offset becomes greater than the total number of tables
unset($_SESSION['tmp_user_values']['table_limit_offset']);
echo "\n";
$reload_url = './navigation.php?' . PMA_generate_common_url($GLOBALS['db'], '', '&');
if (!$jsonly) {
echo '<script type="text/javascript">' . PHP_EOL;
}
?>
//<![CDATA[
if (typeof(window.parent) != 'undefined'
&& typeof(window.parent.frame_navigation) != 'undefined'
&& window.parent.goTo) {
window.parent.goTo('<?php echo $reload_url; ?>');
}
//]]>
<?php
if (!$jsonly) {
echo '</script>' . PHP_EOL;