Fix spelling mistakes

Typos found using [misspell tool](https://github.com/client9/misspell).

core/authentication_api.php

@@ -1046,7 +1046,7 @@ function auth_is_cookie_valid( $p_cookie_string ) {
 		return false;
 	}
 
-	# succeeed if user has already been authenticated
+	# succeed if user has already been authenticated
 	if( NO_USER != $g_cache_current_user_id ) {
 		return true;
 	}

core/classes/BugFilterQuery.class.php

@@ -1077,7 +1077,7 @@ protected function build_prop_relationship() {
 				$t_where = $t_table_dst . '.relationship_type IS NULL AND ' . $t_table_src . '.relationship_type IS NULL';
 			} else {
 				# rel NONE, bug ID, those bugs that are not related in any way to bug ID
-				# map to a non-existant relation type -1 to include nulls
+				# map to a non-existent relation type -1 to include nulls
 				# not including the self id
 				$t_where = 'NOT COALESCE(' . $t_table_dst . '.source_bug_id, -1) = ' . $this->param( $c_rel_bug )
 						. ' AND NOT COALESCE(' . $t_table_src . '.destination_bug_id, -1) = ' . $this->param( $c_rel_bug )
@@ -1099,7 +1099,7 @@ protected function build_prop_relationship() {
 			# relation is specified
 			if( META_FILTER_NONE == $c_rel_bug ) {
 				# rel REL, bug NONE, those bugs that don't have any REL relation (may have other types)
-				# map to a non-existant relation type -1 to include nulls
+				# map to a non-existent relation type -1 to include nulls
 				$t_where = 'COALESCE(' . $t_table_dst . '.relationship_type, -1) <> ' . $this->param( $t_comp_type )
 						. ' AND COALESCE(' . $t_table_src . '.relationship_type, -1) <> ' . $this->param( $c_rel_type );
 			} elseif( META_FILTER_ANY == $c_rel_bug ) {

core/classes/ConfigParser.class.php

@@ -57,7 +57,7 @@ public function __construct( $p_code ) {
 	/**
 	 * Parse the code for a variable assignment.
 	 * Handles scalar types, and various array types (simple, associative,
-	 * multi-dimentional)
+	 * multi-dimensional)
 	 * @param integer $p_extra_tokens Define how extra tokens should be handled
 	 *                             - EXTRA_TOKENS_IGNORE silently ignore any
 	 *                               extra code given after the first token

core/classes/DbQuery.class.php

@@ -48,7 +48,7 @@
  *   supported formats:
  *     - ":{string}" For labeled parameters. Binded values are stored in $query_bind_array
  *     - "${int}" For anonymous parameters. Binded values are stored in $query_autobind_array
- *     - "${string}{int}" For special constructs, eg: $in0 for late binding IN caluses
+ *     - "${string}{int}" For special constructs, eg: $in0 for late binding IN clauses
  * 2) $expanded_query_string: stores the query string after expansion of special constructs
  *   into standard "${int}" parameters
  * 3) $db_query_string: stores the query string after all parameters have been renamed,

core/csv_api.php

@@ -78,11 +78,12 @@ function csv_get_newline() {
  * @access public
  */
 function csv_get_separator() {
-	static $s_seperator = null;
-	if( $s_seperator === null ) {
-		$s_seperator = config_get( 'csv_separator' );
+	static $s_separator = null;
+	if( $s_separator === null ) {
+		$s_separator = config_get( 'csv_separator' );
 	}
-	return $s_seperator;
+
+	return $s_separator;
 }
 
 /**

core/custom_field_api.php

@@ -264,13 +264,15 @@ function custom_field_cache_values( array $p_bug_id_array, array $p_field_id_arr
 		if( !isset( $g_cache_cf_bug_values[$c_bug_id] ) ) {
 			$g_cache_cf_bug_values[$c_bug_id] = array();
 		}
+
 		$c_field_id = (int)$t_row['field_id'];
 		$t_value_column = ( $f_cf_defs[$c_field_id]['type'] == CUSTOM_FIELD_TYPE_TEXTAREA ? 'text' : 'value' );
 		$t_value = $t_row[$t_value_column];
 		if( null !== $t_value ) {
 			$t_value = custom_field_database_to_value( $t_value, $f_cf_defs[$c_field_id]['type'] );
 		}
-		# non-existant will be stored as null
+
+		# non-existent will be stored as null
 		$g_cache_cf_bug_values[$c_bug_id][$c_field_id] = $t_value;
 	}
 }
@@ -1398,7 +1400,7 @@ function custom_field_set_sequence( $p_field_id, $p_project_id, $p_sequence ) {
  * Print an input field
  * $p_field_def contains the definition of the custom field (including it's field id
  * $p_bug_id    contains the bug where this field belongs to. If it's left
- * away, it'll default to 0 and thus belongs to a new (i.e. non-existant) bug
+ * away, it'll default to 0 and thus belongs to a new (i.e. non-existent) bug
  * NOTE: This probably belongs in the print_api.php
  * @param array   $p_field_def Custom field definition.
  * @param integer $p_bug_id    A bug identifier.

core/filter_api.php

@@ -1278,7 +1278,7 @@ function filter_get_bug_count( array $p_query_clauses, $p_pop_param = true ) {
 
 	error_parameters( __FUNCTION__ . '()', 'BugFilterQuery class' );
 	trigger_error( ERROR_DEPRECATED_SUPERSEDED, DEPRECATED );
-	# If query caluses is an empty array, the query can't be created
+	# If query clauses is an empty array, the query can't be created
 	if( empty( $p_query_clauses ) ) {
 		if( $p_pop_param ) {
 			# reset the db_param stack, this woould have been done by db_query if executed

core/graphviz_api.php

@@ -360,9 +360,9 @@ function output( $p_format = 'dot', $p_headers = false ) {
 			);
 
 		$t_pipes = array();
-		$t_proccess = proc_open( $t_command, $t_descriptors, $t_pipes );
+		$t_process = proc_open( $t_command, $t_descriptors, $t_pipes );
 
-		if( is_resource( $t_proccess ) ) {
+		if( is_resource( $t_process ) ) {
 			# Filter generated output through dot
 			fwrite( $t_pipes[0], $t_dot_source );
 			fclose( $t_pipes[0] );
@@ -384,7 +384,7 @@ function output( $p_format = 'dot', $p_headers = false ) {
 			}
 
 			fclose( $t_pipes[1] );
-			proc_close( $t_proccess );
+			proc_close( $t_process );
 		}
 	}
 

core/install_helper_functions_api.php

@@ -797,7 +797,7 @@ function install_print_unserialize_error( $p_description, $p_table, $p_error, $p
 	printf('<p><br>%s could not be converted because its data is not valid. '
 		. 'Fix the problem by manually repairing or deleting the '
 		. 'offending %s row as appropriate, then try again.'
-		. '<br>Error: <em>%s</em> occured because of the string below</p>'
+		. '<br>Error: <em>%s</em> occurred because of the string below</p>'
 		. '<pre>%s</pre>',
 		$p_description,
 		db_get_table( $p_table ),

core/summary_api.php

@@ -134,7 +134,7 @@ function summary_helper_build_bugcount( &$p_cache, $p_key, $p_status, $p_bugcoun
  * 
  * @param string $p_bug_link            The base bug link.
  * @param string &$p_bugs_open          The open bugs count, return open bugs link.
- * @param string &$p_bugs_resolved      The resovled bugs count, return resolved bugs link.
+ * @param string &$p_bugs_resolved      The resolved bugs count, return resolved bugs link.
  * @param string &$p_bugs_closed        The closed bugs count, return closed bugs link.
  * @param string &$p_bugs_total         The total bugs count, return total bugs link.
  * @return void 
@@ -160,7 +160,7 @@ function summary_helper_build_buglinks( $p_bug_link, &$p_bugs_open, &$p_bugs_res
 /**
  * Calculate bug ratio 
  * @param integer $p_bugs_open            The open bugs count.
- * @param integer $p_bugs_resolved        The resovled bugs count.
+ * @param integer $p_bugs_resolved        The resolved bugs count.
  * @param integer $p_bugs_closed          The closed bugs count.
  * @param integer $p_bugs_total_count     The total bugs count.
  * @return array  array of ($t_bugs_resolved_ratio, $t_bugs_ratio)

core/tag_api.php

@@ -75,20 +75,20 @@
 function tag_cache_rows( array $p_tag_ids ) {
 	global $g_cache_tags;
 
-	$t_ids_to_seach = array();
+	$t_ids_to_search = array();
 	foreach( $p_tag_ids as $t_id ) {
 		if( !isset( $g_cache_tags[(int)$t_id]) ) {
-			$t_ids_to_seach[(int)$t_id] = (int)$t_id;
+			$t_ids_to_search[(int)$t_id] = (int)$t_id;
 		}
 	}
-	if( empty( $t_ids_to_seach ) ) {
+	if( empty( $t_ids_to_search ) ) {
 		return;
 	}
 
 	db_param_push();
 	$t_sql_in_params = array();
 	$t_params = array();
-	foreach( $t_ids_to_seach as $t_id ) {
+	foreach( $t_ids_to_search as $t_id ) {
 		$t_sql_in_params[] = db_param();
 		$t_params[] = $t_id;
 	}
@@ -98,10 +98,10 @@ function tag_cache_rows( array $p_tag_ids ) {
 	while( $t_row = db_fetch_array( $t_result ) ) {
 		$c_id = (int)$t_row['id'];
 		$g_cache_tags[$c_id] = $t_row;
-		unset( $t_ids_to_seach[$c_id] );
+		unset( $t_ids_to_search[$c_id] );
 	}
 	# mark the non existent ids
-	foreach( $t_ids_to_seach as $t_id ) {
+	foreach( $t_ids_to_search as $t_id ) {
 		$g_cache_tags[$t_id] = false;
 	}
 }
@@ -116,20 +116,21 @@ function tag_cache_rows( array $p_tag_ids ) {
 function tag_cache_bug_tag_rows( array $p_bug_ids ) {
 	global $g_cache_bug_tags;
 
-	$t_ids_to_seach = array();
+	$t_ids_to_search = array();
 	foreach( $p_bug_ids as $t_id ) {
 		if( !isset( $g_cache_bug_tags[(int)$t_id]) ) {
-			$t_ids_to_seach[] = (int)$t_id;
+			$t_ids_to_search[] = (int)$t_id;
 		}
 	}
-	if( empty( $t_ids_to_seach ) ) {
+
+	if( empty( $t_ids_to_search ) ) {
 		return;
 	}
 
 	db_param_push();
 	$t_sql_in_params = array();
 	$t_params = array();
-	foreach( $t_ids_to_seach as $t_id ) {
+	foreach( $t_ids_to_search as $t_id ) {
 		$t_sql_in_params[] = db_param();
 		$t_params[] = $t_id;
 	}