Short Notes on PHP - Revision history

Admin: /* Disconnect Client and Continue Processing */

2013-01-21T10:42:37Z

‎Disconnect Client and Continue Processing

Admin at 09:09, 21 January 2013

2013-01-21T09:09:45Z

Admin at 10:45, 3 December 2012

2012-12-03T10:45:27Z

Admin: Created page with "== Convert Accented Characters to Non-Accented ==

setlocale(LC_ALL, "en_US.utf8"); $translit = iconv("utf-8", "us-ascii//TRANSLIT", $_GET['orig_name']);

'''Note''': ..."

2012-06-01T20:13:21Z

Created page with "== Convert Accented Characters to Non-Accented == <pre>setlocale(LC_ALL, "en_US.utf8"); $translit = iconv("utf-8", "us-ascii//TRANSLIT", $_GET['orig_name']);</pre> '''Note''': ..."

New page

== Convert Accented Characters to Non-Accented ==

<pre>setlocale(LC_ALL, "en_US.utf8");
$translit = iconv("utf-8", "us-ascii//TRANSLIT", $_GET['orig_name']);</pre>

'''Note''': On *nix systems, you can check for supported locales using <tt>`locale -a`</tt>.

'''Note''': Instead of hard-coding the locale to use, you could also use values of <tt>HTTP_ACCEPT_LANGUAGE</tt> and <tt>HTTP_ACCEPT_CHARSET</tt>, sent by the browser, to tailor the input locale.

== Upload a File using cURL ==

<pre><?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_VERBOSE, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible;)");
curl_setopt($ch, CURLOPT_URL, _VIRUS_SCAN_URL);
curl_setopt($ch, CURLOPT_POST, true);
// same as <input type="file" name="file_box">
// notice the '@' ahead of the path!
$post = array(
"file_box"=>"@/path/to/myfile.jpg",
);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
$response = curl_exec($ch);
// if $response === false, something went wrong
?></pre>

@@ Line 60: / Line 60: @@
 Sometimes you need to do something time consuming in the PHP script being called, but you don't want to keep client "hanging".
-Just use the following "idiom":
+Just use the following "idiom" (''note - if you're having problems with output being truncated, see below''):
 <pre>set_time_limit(0);                  // don't let the time limit us ...
@@ Line 74: / Line 74: @@
 // flush everything
 ob_end_flush();
 ob_flush();
 flush();

← Older revision		Revision as of 09:09, 21 January 2013
Line 45:		Line 45:

	For more information see: [http://www.php.net/manual/en/function.http-build-query.php http_build_query()], [http://www.php.net/manual/en/function.stream-context-create.php stream_context_create()], [http://www.php.net/manual/en/function.file-get-contents.php file_get_contents()].		For more information see: [http://www.php.net/manual/en/function.http-build-query.php http_build_query()], [http://www.php.net/manual/en/function.stream-context-create.php stream_context_create()], [http://www.php.net/manual/en/function.file-get-contents.php file_get_contents()].
		+
		+	== Prevent Client Disconnect from Killing PHP ==
		+
		+	When client aborts the request (typically "Stop" button in browser), the PHP script is killed. To prevent this, just call
		+
		+	<pre>ignore_user_abort(true);</pre>
		+
		+	Note that your script still can be killed by timeout. You might want to set
		+
		+	<pre>set_time_limit(0);</pre>
		+
		+	== Disconnect Client and Continue Processing ==
		+
		+	Sometimes you need to do something time consuming in the PHP script being called, but you don't want to keep client "hanging".
		+
		+	Just use the following "idiom":
		+
		+	<pre>set_time_limit(0); // don't let the time limit us ...
		+	ignore_user_abort(true); // ... and the user kill us
		+	if (!ob_start('ob_gzhandler')) // try to compress the output ...
		+	ob_start(); // ... or just make it raw
		+
		+	// ... 'echo' any response to client ...
		+
		+	header('Content-Length: '.ob_get_length());
		+	header('Connection: close'); // browser will know to close the connection
		+
		+	// flush everything
		+	ob_end_flush();
		+	ob_flush();
		+	flush();
		+
		+	// close current session if necessary
		+	if (session_id())
		+	session_write_close();
		+	// if run as CGI, you need to also:
		+	if (is_callable('fastcgi_finish_request'))
		+	fastcgi_finish_request();
		+
		+	// ... from here on, you're on your own ... process to your liking ...</pre>

← Older revision		Revision as of 10:45, 3 December 2012
Line 27:		Line 27:
	// if $response === false, something went wrong		// if $response === false, something went wrong
	?></pre>		?></pre>
		+
		+	== HTTP Post in Pure PHP (without cURL) ==
		+
		+	<pre>$data = array('param1' => '1', 'param2' => '2');
		+	$_data = http_build_query($data);
		+	$options = array
		+	(
		+	'http' => array
		+	(
		+	'method' => 'POST',
		+	'header' => "Content-type: application/x-www-form-urlencoded\r\nContent-Length: ".strlen($_data)."\r\n",
		+	'content' => $_data
		+	)
		+	);
		+	$context = stream_context_create($options);
		+	$data = @file_get_contents('http://www.example.com/post', 0, $context);</pre>
		+
		+	For more information see: [http://www.php.net/manual/en/function.http-build-query.php http_build_query()], [http://www.php.net/manual/en/function.stream-context-create.php stream_context_create()], [http://www.php.net/manual/en/function.file-get-contents.php file_get_contents()].