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What's the use of ob_start() in php?
...ean() since ob_get_clean() essentially performs both functions. Reference: php.net/manual/en/function.ob-get-clean.php (PHP 4 >= 4.3.0, PHP 5)
– Con Antonakos
May 20 '15 at 16:49
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PHP script - detect whether running under linux or Windows?
I have a PHP script that may be placed on a windows system or a linux system. I need to run different commands in either case.
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How to properly add cross-site request forgery (CSRF) token using PHP
... just mixes it deterministically
Try this out:
Generating a CSRF Token
PHP 7
session_start();
if (empty($_SESSION['token'])) {
$_SESSION['token'] = bin2hex(random_bytes(32));
}
$token = $_SESSION['token'];
Sidenote: One of my employer's open source projects is an initiative to backport ra...
PHP: exceptions vs errors?
Maybe I'm missing it somewhere in the PHP manual, but what exactly is the difference between an error and an exception? The only difference that I can see is that errors and exceptions are handled differently. But what causes an exception and what causes an error?
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How to enable cURL in PHP / XAMPP
How do I enable cURL in PHP?
18 Answers
18
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Coalesce function for PHP?
...es have a coalesce function (returns the first non-NULL value, example ). PHP, sadly in 2009, does not.
9 Answers
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How to resolve “must be an instance of string, string given” prior to PHP 7?
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Prior to PHP 7 type hinting can only be used to force the types of objects and arrays. Scalar types are not type-hintable. In this case an object of the class string is expected, but you're giving it a (scalar) string. The error messa...
Getting the first character of a string with $str[0]
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Does PHP $str[0] take into account that there can be 2Byte long chars? UTF and such? (even though substr() does not help with it either!)
– Tomer W
Jun 26 '13 at 13:29
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Using $_POST to get select option value from HTML
... Where do I put the $selectOption = $_POST['taskOption']; I put it in the php but it does nothing....
– Yunfei Chen
2 days ago
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Calling closure assigned to object property directly
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As of PHP7, you can do
$obj = new StdClass;
$obj->fn = function($arg) { return "Hello $arg"; };
echo ($obj->fn)('World');
or use Closure::call(), though that doesn't work on a StdClass.
Before PHP7, you'd have to implem...