D 2014-03-22T02:38:03.416
L curl
N text/x-markdown
P 14e5a248e65850726a423b1c30cbb5f0cef4132a
U mario
W 3246
<h3> curl() wraps curl{} </h3>
<kbd>[curl.php](doc/trunk/php7/curl.php)</kbd> provides a prefix-free and fluent wrapper onto curl functions.
curl($url)
->post(1)
->PostFields($data)
->exec();
`curl()` is a hybrid instantiation function. It transforms its input into a `curl{}` object.
It can be construed with:
* No arguments.
curl()
* A single URL.
curl($url)
* An array of key=>value settings.
curl(array("URL" => $url, "POST" => 1))
* From a plain curl resource handle.
curl( curl_init($url) )
* Or rewrap an existing curl{} object.
curl( new curl() )
All [curl constants](http://php.net/curl_setopt) become available as virtual methods/properties; just without `CURLOPT_` prefix, and **case-insensitively**.
It's just a new notational style, but identical identifiers:
<table width=80%>
<tr><th>Old</th><th>New</th></tr>
<tr><td>curl_setopt($ch, CURLOPT_REFERER, ...)</td> <td>$curl->referer(...)</td></tr>
<tr><td>curl_setopt($ch, CURLOPT_COOKIE, ...)</td> <td>$curl->COOKIE(...)</td></tr>
<tr><td>curl_setopt($ch, CURLOPT_HTTPHEADER, ...)</td> <td>$curl->HttpHeader(...)</td></tr>
<tr><td>curl_setopt($ch, CURLOPT_TIMEOUT, ...)</td> <td>$curl->timeout(...)</td></tr>
<tr><td>curl_setopt($ch, CURLOPT_COOKIEJAR, ...)</td> <td>$curl->COOKIEJAR(...)</td></tr>
<tr><td>curl_setopt($ch, CURLOPT_PORT, ...)</td> <td>$curl->port(...)</td></tr>
<tr><td>curl_setopt($ch, CURLOPT_CRLF, ...)</td> <td>$curl->CRLF(...)</td></tr>
</table>
You could create a `curl{}` object thus also with:
$curl = curl()->URL($url);
For setting an option use:
$curl->Post($value); // can be chained
Use a virtual property name for retrieving an option or [result state](http://php.net/curl_setopt):
$value = $curl->filetime;
All curl_*() functions become available as methods as well:
$curl->close();
Calling such methods obviously terminates the fluent chain.
`->exec()` for instance promptly returns the result content.
<h3> curl_multi() </h3>
You can also wrap multiple curl handles or objects in a multi-request object. It can be constructed from single URLs or curl objects or raw resource handles again.
While it accepts a plain list of arguments, it's advisable to pass a named set:
$cm = curl_multi(array(
"google" => "http://google.com/",
"url2" => $url2,
"pers" => curl($url3),
"mixed" => array( "URL" => $url4, "POST" => 1 ),
));
Then options can be applied across all bound curl{} objects:
$cm->ReturnTransfer(1);
And when you `->exec()` the chain, it will return all result bodies at once:
$array = $cm->exec();
Which would contain `["google"]` and `["url2"]` for instance.
Btw, `->exec()` accepts a float as parameter. It defines a timeout until which all chained curl requests must have finished. Else some of the result bodies will be empty.
For an example on the flexible instantiation and use see [social.count.php](http://fossil.include-once.org/php-scripts/artifact/0bf6cc919e3b108748b56072509083cda4b56b63)
Z 96b3a21193915d665fee9899867d0cb1