/
fgetcsv.xml
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fgetcsv.xml
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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.fgetcsv" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>fgetcsv</refname>
<refpurpose>Gets line from file pointer and parse for CSV fields</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type class="union"><type>array</type><type>false</type></type><methodname>fgetcsv</methodname>
<methodparam><type>resource</type><parameter>stream</parameter></methodparam>
<methodparam choice="opt"><type class="union"><type>int</type><type>null</type></type><parameter>length</parameter><initializer>&null;</initializer></methodparam>
<methodparam choice="opt"><type>string</type><parameter>separator</parameter><initializer>","</initializer></methodparam>
<methodparam choice="opt"><type>string</type><parameter>enclosure</parameter><initializer>"\""</initializer></methodparam>
<methodparam choice="opt"><type>string</type><parameter>escape</parameter><initializer>"\\"</initializer></methodparam>
</methodsynopsis>
<para>
Similar to <function>fgets</function> except that
<function>fgetcsv</function> parses the line it reads for fields in
<acronym>CSV</acronym> format and returns an array containing the fields
read.
</para>
<note>
<para>
The locale settings are taken into account by this function. If
<constant>LC_CTYPE</constant> is e.g. <literal>en_US.UTF-8</literal>, files in
one-byte encodings may be read wrongly by this function.
</para>
</note>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>stream</parameter></term>
<listitem>
<para>
A valid file pointer to a file successfully opened by
<function>fopen</function>, <function>popen</function>, or
<function>fsockopen</function>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>length</parameter></term>
<listitem>
<para>
Must be greater than the longest line (in characters) to be found in
the CSV file (allowing for trailing line-end characters). Otherwise the
line is split in chunks of <parameter>length</parameter> characters,
unless the split would occur inside an enclosure.
</para>
<para>
Omitting this parameter (or setting it to 0,
or &null; in PHP 8.0.0 or later) the maximum line length is not limited,
which is slightly slower.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>separator</parameter></term>
<listitem>
<para>
The optional <parameter>separator</parameter> parameter sets the field separator (one single-byte character only).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>enclosure</parameter></term>
<listitem>
<para>
The optional <parameter>enclosure</parameter> parameter sets the field enclosure character (one single-byte character only).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>escape</parameter></term>
<listitem>
<para>
The optional <parameter>escape</parameter> parameter sets the escape character (at most one single-byte character).
An empty string (<literal>""</literal>) disables the proprietary escape mechanism.
</para>
<note>
<simpara>
Usually an <parameter>enclosure</parameter> character is escaped inside
a field by doubling it; however, the <parameter>escape</parameter>
character can be used as an alternative. So for the default parameter
values <literal>""</literal> and <literal>\"</literal> have the same
meaning. Other than allowing to escape the
<parameter>enclosure</parameter> character the
<parameter>escape</parameter> character has no special meaning; it isn't
even meant to escape itself.
</simpara>
</note>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns an indexed array containing the fields read on success, &return.falseforfailure;.
</para>
<note>
<para>
A blank line in a CSV file will be returned as an array
comprising a single <type>null</type> field, and will not be treated
as an error.
</para>
</note>
¬e.line-endings;
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.0.0</entry>
<entry>
<parameter>length</parameter> is now nullable.
</entry>
</row>
<row>
<entry>7.4.0</entry>
<entry>
The <parameter>escape</parameter> parameter now also accepts an empty
string to disable the proprietary escape mechanism.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Read and print the entire contents of a CSV file</title>
<programlisting role="php">
<![CDATA[
<?php
$row = 1;
if (($handle = fopen("test.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
echo "<p> $num fields in line $row: <br /></p>\n";
$row++;
for ($c=0; $c < $num; $c++) {
echo $data[$c] . "<br />\n";
}
}
fclose($handle);
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>str_getcsv</function></member>
<member><function>explode</function></member>
<member><function>file</function></member>
<member><function>pack</function></member>
<member><function>fputcsv</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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