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<?php $number = ['1,2', 1, '']; foreach ($number as $val) { if (!empty($val) || !ctype_alpha($val)) echo "val: $val is_numeric ".is_numeric(number_format($val))."\n\r"; } $number = 'abc1,2def'; $number = preg_replace("/[a-zA-Z]/i", '', $number); echo 'is numeric? '.is_numeric(number_format($number));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: number_format(): Argument #1 ($num) must be of type float, string given in /in/5MXYR:5 Stack trace: #0 /in/5MXYR(5): number_format('1,2') #1 {main} thrown in /in/5MXYR on line 5
Process exited with code 255.

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