Archive for category php

PHP sort array by key

Sorting an array by Key.

<?php
/*
Array
(
    [0] => Array
        (
            [hashtag] => a7e87329b5eab8578f4f1098a152d6f4
            [title] => Flower
            [order] => 3
        )

    [1] => Array
        (
            [hashtag] => b24ce0cd392a5b0b8dedc66c25213594
            [title] => Free
            [order] => 2
        )

    [2] => Array
        (
            [hashtag] => e7d31fc0602fb2ede144d18cdffd816b
            [title] => Ready
            [order] => 1
        )
)
*/
function aasort (&$array, $key) {
	$sorter = array();
	$ret = array();
	reset($array);
	foreach ($array as $ii => $va) {
	    $sorter[$ii] = $va[$key];
	}
	asort($sorter);
	foreach ($sorter as $ii => $va) {
	    $ret[$ii] = $array[$ii];
	}
	$array = $ret;
}
aasort($your_array,"order");
?>

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__toString() must not throw an exception

__toString() must not throw an exception.

 

If you an exception handler even that seems fail (in itself) with __toString() must not throw an exception. There is no nice safe way to handle it. The easiest solution is to catch that error as well. It might seems to be odd, but on the other hand the exception hanler shall not fail ;)


/**
* String representation of this object
* @return string
*/
public function __toString()
{
try {
return (string) $this->name;
} catch (Exception $exception) {
return '';
}
}

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PHP detect IOS / iPhone / iPad / iPod

Very simple

<?php
function is_ios(){
    if (stripos($_SERVER['HTTP_USER_AGENT'],"iPhone")  !== false) {
        return true;
    } elseif (stripos($_SERVER['HTTP_USER_AGENT'],"iPad") !== false) {
        return true;
    } elseif (stripos($_SERVER['HTTP_USER_AGENT'],"iPod") !== false) {
        return true;
    }
    return false;
}
?>

Zend framework mail bounce because of return-path

To solve this use

$tr = new Zend_Mail_Transport_Sendmail('-fmail@example.com');
 $_mail = new Zend_Mail('ISO-8859-1');
 $_mail->setDefaultTransport($tr);

and wooo it works

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Ajax Undzeichen ( &) übertragen

Normalerweise gibt es ein Problem beim Übertragen von Daten per AJAX, wenn sich ein & Zeichen in dem zuübertragenden Text / Daten befindet. Das Javascript interpretiert das Undzeichen als Trennzeichen. Alles nach dem & Zeichen wird nicht mehr übertragen. Abhilfe schafft hier die funktion encodeURIComponent

 

var save_data = 'save_text=' + encodeURIComponent($(".edit_textarea").val());
		logging(save_data);
		//return false;
		$.ajax({
			type: 'POST',
			url: 'ajax.php',
			data: save_data,
			success: function (msg){
				console.log('OK: ' + msg);
			},
			error:function (xhr, ajaxOptions, thrownError){
				alert(xhr.status);
				alert(thrownError);
			}
		});

Jetzt kommen die Daten auch an.

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mod_fcgid is crashing apache windows and linux

With apache 2.3.15 I had kinda  the same issue with mod_fcgidon ubuntu 8.04 as on windows.  With -k restart or -k graceful the server did not die like on windows, but the server delivered than only a 200 OK response header, but nothing more. Switching from worker mpm to event mpm seemed to solve this, but the server died later :-/

Since it has talmost the same issues like on windows I could make a patch that fixes this. Grab the patch (patched against trunk) for the patch for 2.3.6

The bug 50309 is now longer than a year listet. Bad that none applied it yet.

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Zend framework lucene UTF-8 problem

I had issues with the zend framework and its implementation of lucene. It saved the values from my UTF-8 database in the lucene files with characters like UTF-8 in ISO 8859-1 like on the search result page. And I wasn’t able to search case insensitive.

I noticed that the apache header (zend server CE) wasn’t sending UTF-8. So I added AddDefaultCharset utf-8 to my httpd.conf. Didn’t help.

What helped: In the Bootstrap.php adding to the init of the search

Zend_Search_Lucene_Analysis_Analyzer::setDefault(new Zend_Search_Lucene_Analysis_Analyzer_Common_Utf8());
Zend_Search_Lucene_Search_QueryParser::setDefaultEncoding('utf-8');
Zend_Search_Lucene_Analysis_Analyzer::setDefault(new Zend_Search_Lucene_Analysis_Analyzer_Common_Utf8_CaseInsensitive());

In the model it is needed to decode it to ISO 8859-1 and than save it as UTF-8. Sounds insane, but it was the only thing that works for me.

$doc->addField(Zend_Search_Lucene_Field::Text('lucene_DB_CLOUMN_NAME',utf8_decode($db_apater_result['DB_CLOUMN_NAME']),'UTF-8'));

WTF Zend Lucene!

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JQuery Ajax cross domain request

If you try to do an ajax request on a different domain. You’ll get nothing. Looking a bit deeper into the request I noticed that the status code isn’t 200 or 403 nor 404 like expected. Nope it is 0. (jquery ajax statusCode 0). This means the browser doesn’t allow a crossdomain request. The easiest way for me to solve this was to create a proxy php script. Now I can send my ajax request to a url on my server while the PHP script does the real request to the other server.

This is the php script

/**
* GetFromHost()
*
* @param string $host
* @param int $port
* @param string $path
* @param string $referer
* @param bool $keepalive
* @return
*/
function GetFromHost($host, $port, $path, $referer,$keepalive=false) {

 $fsocket = fsockopen($host, 80, $errno, $errstr, 30);

 if($fsocket){
 $request =     "GET $path HTTP/1.1\r\n";
 $request .= "Host: $host\r\n";
 $request .= "Referer: $referer\r\n";
 $request .= 'User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) ';
 $request .= "Gecko/20021204\r\n";
 $request .= 'Accept: text/xml,application/xml,application/xhtml+xml,';
 $request .= 'text/html;q=0.9,text/plain;q=0.8,video/x-mng,image/png,';
 $request .= "image/jpeg,image/gif;q=0.2,text/css,*/*;q=0.1\r\n";
 $request .= "Accept-Language: en-us, en;q=0.50\r\n";
 //$request .= "Accept-Encoding: gzip, deflate, compress;q=0.9\r\n";
 $request .= "Accept-Charset: ISO-8859-1, utf-8;q=0.66, *;q=0.66\r\n";
 if($keepalive==true){
 $request .= "Keep-Alive: 300\r\n";
 $request .= "Connection: keep-alive\r\n";
 }
 else
 {
 $request .= "Connection: close\r\n";
 }
 //$request .= "Content-Type: application/x-www-form-urlencoded\r\n";
 //$request .= "Content-length: ". strlen($data_to_send) ."\r\n";
 $request .= "\r\n";
 //$request .= $data_to_send;

 fputs($fsocket, $request);

 $res ='';
 while(!feof($fsocket)) {
 $res .= fgets($fsocket, 1024);
 }
 fclose($fsocket);

 return $res;

 }
 else
 {
 return false;
 //echo "Fehlgeschlagen: ".$fsocket . $host .':'. $port;
 }

}

$x = GetFromHost("www.example", "80", "/deep/url/kinda/", "");
$x = explode('Content-Type: text/html',$x);
$output = preg_replace('/\s+(\r\n|\r|\n)/', '$1', $x['1']);//remove white space and tabs at the line ends
echo $output;

maybe you have to edit the explode part for server to separate the header fom the real content.

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Nice things in PHP 5.3

echo __DIR__;

$date = date_create_from_format(‘y-m-d’, ’05-10-12′);
var_dump(date_format($date, ‘F d, Y’));

 

Dude, where is my code?
stream_resolve_include_path(“PEAR.php”);

$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator(‘.’));
$regx = new RegexIterator($it, ‘/^.+\.php$/i’, RecursiveRegexIterator::GET_MATCH);
foreach($regx as $file){
echo $file[0]. “\n”;
}

 

Disable AllowOverride (htaccess to httpd.conf)

AllowOverride is one of the things that slow down a lot. Disabling it makes apache faster. It is a horror to migrate all .htaccess files by hand. BUT here is a PHP script from Paul Reinheimer which makes it realy easy :-)

Get it htaccess.php

tune your server!

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