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run code in 300+ PHP versions simultaneously
<?php $dec = intval((-1 * PHP_INT_MAX)); var_dump(decbin($dec), dec2bin($dec)); function dec2bin($dec) { if ($dec == 0) { return 0; } $sgn = 1; if ($dec < 0) { $sgn = -1; $dec = (PHP_INT_MAX + $dec) + 1; } $bin = ''; while ($dec > 0) { $bin = ($dec & 1) . $bin; $dec >>= 1; } return $sgn > 0 ? $bin : '1' . str_pad($bin, 63, '0', STR_PAD_LEFT); }
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
string(64) "1000000000000000000000000000000000000000000000000000000000000001" string(64) "1000000000000000000000000000000000000000000000000000000000000001"
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 string(64) "1000000000000000000000000000000000000000000000000000000000000001" string(64) "1000000000000000000000000000000000000000000000000000000000000001"
preferences:
240.71 ms | 402 KiB | 287 Q