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<?php foreach ($strings as $string) { if(preg_match('/^NPWP:?\s*(\d+)/', $string, $matches)) { echo $matches[1]; } }
Output for git.master_jit, git.master, rfc.property-hooks
Warning: Undefined variable $strings in /in/JMZAq on line 3 Warning: foreach() argument must be of type array|object, null given in /in/JMZAq on line 3

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