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@ 2022-03-25T00:45:47Z

<?php
$text="('x-csrf-token', 'whatever')";
preg_match("/x-csrf-token',\s*'([^']+)/mi",$text,$matches);
$token=$matches[1];
var_dump($token);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
preg_match: documentation ( source)

preferences:dark modelive previewkey bindings

83.32 ms | 1234 KiB | 5 Q