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<?php $arr = ["TAX ID. 01.000.589.0.055.000 or", "TAX ID : 01.000.589.0.055.000 or", "TAX ID 01.000.589.0.055.000 or", "TAX: 01.000.589.0.055.000"]; foreach($arr as $str){ echo preg_replace('/[^\d]/', '', $str) . "\n"; }
Output for rfc.property-hooks, git.master, git.master_jit
010005890055000 010005890055000 010005890055000 010005890055000

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