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run code in 300+ PHP versions simultaneously
<?php // 7f ef ff ff ff ff ff ff (Max double) // https://en.wikipedia.org/wiki/Double-precision_floating-point_format#Double-precision_examples // 7f = 127 // ef = 239 // ff = 255 $str = chr(127) . chr(239) . ' ' . str_repeat(chr(255) . chr(255) . ' ', 3); echo (string) unpack('d', "7fef ffff ffff ffff")[1], PHP_EOL;
Output for 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
1.9035077955824E+185
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 1.9035077955824E+185
preferences:
253.38 ms | 402 KiB | 330 Q