What could be causing the "Allowed memory size exhausted" error in the preg_replace function in PHP?

The "Allowed memory size exhausted" error in the preg_replace function in PHP occurs when the script consumes more memory than the limit set in the php.ini file. This can happen when working with large strings or processing a large number of regex replacements. To solve this issue, you can increase the memory limit in the php.ini file or optimize your code to use less memory. 

// Increase memory limit
ini_set('memory_limit', '256M');

// Your preg_replace function call
$result = preg_replace($pattern, $replacement, $subject);

Keywords

Allowed memory size exhausted preg_replace PHP error memory allocation

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