3v4l.org

run code in 300+ PHP versions simultaneously
<?php $max = 32767; $n = 20; $step = intval($max/$n); for ($i=0; $i<=$n; $i++) { $val = $i*$step; echo base64_encode(pack('N', $val)) . " $val \n"; }
Output for 4.3.0 - 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, 5.5.0 - 5.5.38, 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
AAAAAA== 0 AAAGZg== 1638 AAAMzA== 3276 AAATMg== 4914 AAAZmA== 6552 AAAf/g== 8190 AAAmZA== 9828 AAAsyg== 11466 AAAzMA== 13104 AAA5lg== 14742 AAA//A== 16380 AABGYg== 18018 AABMyA== 19656 AABTLg== 21294 AABZlA== 22932 AABf+g== 24570 AABmYA== 26208 AABsxg== 27846 AABzLA== 29484 AAB5kg== 31122 AAB/+A== 32760
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 AAAAAA== 0 AAAGZg== 1638 AAAMzA== 3276 AAATMg== 4914 AAAZmA== 6552 AAAf/g== 8190 AAAmZA== 9828 AAAsyg== 11466 AAAzMA== 13104 AAA5lg== 14742 AAA//A== 16380 AABGYg== 18018 AABMyA== 19656 AABTLg== 21294 AABZlA== 22932 AABf+g== 24570 AABmYA== 26208 AABsxg== 27846 AABzLA== 29484 AAB5kg== 31122 AAB/+A== 32760

preferences:
311.14 ms | 402 KiB | 456 Q