php-doc-en/reference/stream/functions/stream-get-line.xml
Christoph M. Becker 9a37893b54
Clarify meaning of stream_get_line() parameters
Cf. <https://bugs.php.net/48421>.

Signed-off-by: Christoph M. Becker <cmbecker69@gmx.de>
2021-04-01 17:33:28 +02:00

108 lines
3.1 KiB
XML

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.stream-get-line" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>stream_get_line</refname>
<refpurpose>Gets line from stream resource up to a given delimiter</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>stream_get_line</methodname>
<methodparam><type>resource</type><parameter>handle</parameter></methodparam>
<methodparam><type>int</type><parameter>length</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>ending</parameter><initializer>""</initializer></methodparam>
</methodsynopsis>
<para>
Gets a line from the given handle.
</para>
<para>
Reading ends when <parameter>length</parameter> bytes have been read, when
the non-empty string specified by <parameter>ending</parameter> is found (which is
<emphasis>not</emphasis> included in the return value), or on <acronym>EOF</acronym>
(whichever comes first).
</para>
<para>
This function is nearly identical to <function>fgets</function> except in
that it allows end of line delimiters other than the standard \n, \r, and
\r\n, and does <emphasis>not</emphasis> return the delimiter itself.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>handle</parameter></term>
<listitem>
<para>
A valid file handle.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>length</parameter></term>
<listitem>
<para>
The maximum number of bytes to read from the handle.
Negative values are not supported.
Zero (<literal>0</literal>) means the default socket chunk size,
i.e. <literal>8192</literal> bytes.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>ending</parameter></term>
<listitem>
<para>
An optional string delimiter.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns a string of up to <parameter>length</parameter> bytes read from the file
pointed to by <parameter>handle</parameter>.
</para>
<para>
If an error occurs, returns &false;.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member><function>fread</function></member>
<member><function>fgets</function></member>
<member><function>fgetc</function></member>
</simplelist>
</refsect1>
</refentry>
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