3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = $_POST['a'] = '6898557993159892eee'; $b= $_POST['b'] = '222the'; echo $a."\n"; echo $b."\n"; echo (!is_numeric(($a * $b) . '')) ? "yes right way \n":"not number...\n"; echo (($a * $b) != INF) ? "YES infinite.. \n":"NOt inf ... \n"; if(!is_numeric (($a * $b) . '') && (($a * $b) != INF)) { echo "good\n"; }else{echo "WRONG...\n";}
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
6898557993159892eee 222the Warning: A non-numeric value encountered in /in/igPVX on line 8 Warning: A non-numeric value encountered in /in/igPVX on line 8 not number... Warning: A non-numeric value encountered in /in/igPVX on line 9 Warning: A non-numeric value encountered in /in/igPVX on line 9 YES infinite.. Warning: A non-numeric value encountered in /in/igPVX on line 11 Warning: A non-numeric value encountered in /in/igPVX on line 11 WRONG...
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
6898557993159892eee 222the Notice: A non well formed numeric value encountered in /in/igPVX on line 8 Notice: A non well formed numeric value encountered in /in/igPVX on line 8 not number... Notice: A non well formed numeric value encountered in /in/igPVX on line 9 Notice: A non well formed numeric value encountered in /in/igPVX on line 9 YES infinite.. Notice: A non well formed numeric value encountered in /in/igPVX on line 11 Notice: A non well formed numeric value encountered in /in/igPVX on line 11 WRONG...
Output for 4.3.6 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.3.32 - 7.3.33
6898557993159892eee 222the not number... YES infinite.. WRONG...
Output for 4.3.0 - 4.3.5
6898557993159892eee 222the not number... Notice: Use of undefined constant INF - assumed 'INF' in /in/igPVX on line 9 YES infinite.. WRONG...

preferences:
252.52 ms | 401 KiB | 357 Q