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PHP Session Security
...or maintaining responsible session security with PHP? There's information all over the web and it's about time it all landed in one place!
...
Access-Control-Allow-Origin Multiple Origin Domains?
...Allow-Origin. Something like the result of this - echo http://example.com/index.php/ab/cd | cut -d'/' -f1,2,3 in bash command . Is this possible to do the same in the (apache)conf file? Any Idea?
– 3AK
Jun 16 '16 at 10:02
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Are unused CSS images downloaded?
...le type="text/css">
.nonexistent {
background: url('index.php?foo');
}
</style>
</head>
<body>
<?php if(isset($_GET['foo'])) {
file_put_contents('test.txt', $_SERVER['HTTP_USER_AGENT']);
} ?>
</body>
</html>
...
How to remove extension from string (only real extension!)
...om the manual, pathinfo:
<?php
$path_parts = pathinfo('/www/htdocs/index.html');
echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n";
echo $path_parts['filename'], "\n"; // Since PHP 5.2.0
?>
It doesn't have to be a...
Get first n characters of a string
...f=strip_tags($str);
if(strlen($buff) > $n_chars)
{
$cut_index=strpos($buff,' ',$n_chars);
$buff=substr($buff,0,($cut_index===false? $n_chars: $cut_index+1)).$crop_str;
}
return $buff;
}
if $str is shorter than $n_chars returns it untouched.
If $str is equal to $...
Preferred method to store PHP arrays (json_encode vs serialize)
...ciative array of data in a flat file for caching purposes. I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
...
Get name of caller function in PHP?
Is there a PHP function to find out the name of the caller function in a given function?
12 Answers
...
Using braces with dynamic variable names in PHP
I'm trying to use dynamic variable names (I'm not sure what they're actually called) But pretty much like this:
8 Answers
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PHP array_filter with arguments
...
As an alternative to @Charles's solution using closures, you can actually find an example in the comments on the documentation page. The idea is that you create an object with the desired state ($num) and the callback method (taking $i as an argument):
class LowerThanFilter {
private ...
PHP: exceptions vs errors?
...
Exceptions are thrown - they are intended to be caught. Errors are generally unrecoverable. Lets say for instance - you have a block of code that will insert a row into a database. It is possible that this call fails (duplicate ID) - you will want to have a "Error" which in this case is an "Exc...