php-doc-en/reference/curl/functions/curl-init.xml

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  <refentry id="function.curl-init">
   <refnamediv>
    <refname>curl_init</refname>
    <refpurpose>Initialize a CURL session</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>resource</type><methodname>curl_init</methodname>
      <methodparam choice="opt"><type>string</type><parameter>url</parameter></methodparam>
     </methodsynopsis>
    <para>
     The <function>curl_init</function> will initialize a new session
     and return a CURL handle for use with the
     <function>curl_setopt</function>, <function>curl_exec</function>,
     and <function>curl_close</function> functions.  If the optional
     <parameter>url</parameter> parameter is supplied then the
     CURLOPT_URL option will be set to the value of the parameter.
     You can manually set this using the
     <function>curl_setopt</function> function.
     <example>
      <title>
       Initializing a new CURL session and fetching a webpage
      </title>
      <programlisting role="php">
<![CDATA[
<?php
// create a new curl resource
$ch = curl_init();

// set URL and other appropriate options
curl_setopt($ch, CURLOPT_URL, "http://www.example.com/");
curl_setopt($ch, CURLOPT_HEADER, 0);

// grab URL and pass it to the browser
curl_exec($ch);

// close curl resource, and free up system resources
curl_close($ch);
?>
]]>
      </programlisting>
     </example>
    </para>
    <para>
     See also: <function>curl_close</function>,
     <function>curl_setopt</function>
    </para>
   </refsect1>
  </refentry>

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