3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x=23; $xx=$x; $a=50; $q=1; $qq=0.07; $s=0; for ($i=$qq;; $i=$i+$i*$a*0.01) { $x-=$i; //echo $i."\n"; if ($x <0) break; $y=$x; $s++; $c=$i; } echo ($c)."////".$s."\\\\\\ \n".($xx-$x).">>>n>>".(-$x)."\nend>>>". ($y); ?>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.16 - 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
6.0548291015625////12\\\ 27.106730957031>>>n>>4.1067309570312 end>>>4.9755126953125
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 6.0548291015625////12\\\ 27.106730957031>>>n>>4.1067309570312 end>>>4.9755126953125
preferences:
143.52 ms | 402 KiB | 169 Q