3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 0; $j = 1; for($k=1;$k<=10;$k++){ $c = $i+$j; echo $c."<br>"; $i = $j; $j = $c; }
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.3.4, 8.3.6
1<br>2<br>3<br>5<br>8<br>13<br>21<br>34<br>55<br>89<br>
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 1<br>2<br>3<br>5<br>8<br>13<br>21<br>34<br>55<br>89<br>

preferences:
237.08 ms | 402 KiB | 288 Q