Online PHP editor | output for ATtsj

@ 2015-04-24T11:20:45Z

<?php
        $a = '10';
        $b=  '50';

        echo $a."\n";
        echo $b."\n";
        echo (($a * $b) . '')."\n";
        $f = (($a * $b) . '');
        echo gettype($f)."\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 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, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: 10 50 500 string not number... YES infinite.. WRONG...
Output for 4.3.0 - 4.3.5: 10 50 500 string not number... Notice: Use of undefined constant INF - assumed 'INF' in /in/ATtsj on line 12 YES infinite.. WRONG...

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