3v4l.org

run code in 300+ PHP versions simultaneously
<?php $k=7; while($k){ echo "<br>".$k+2; $k--; };
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
<br>9<br>8<br>7<br>6<br>5<br>4<br>3
Output for 7.4.0 - 7.4.33
Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /in/ROa67 on line 6 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33
Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2 Warning: A non-numeric value encountered in /in/ROa67 on line 6 2
Output for 7.0.0 - 7.0.20
2222222

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