3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(PHP_INT_MAX); var_dump(PHP_INT_SIZE); var_dump(hexdec('755869c2d8ad8a0')); var_dump(hexdec('755869c2d8ad8a0a15e4337804c3dec6'));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
int(9223372036854775807) int(8) int(528476536622995616) float(1.559787427207167E+38)
Output for 4.4.0 - 4.4.9, 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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
int(9223372036854775807) int(8) int(528476536622995616) float(1.5597874272072E+38)
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4
Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/ki6GH on line 3 string(11) "PHP_INT_MAX" Notice: Use of undefined constant PHP_INT_SIZE - assumed 'PHP_INT_SIZE' in /in/ki6GH on line 4 string(12) "PHP_INT_SIZE" int(528476536622995616) float(1.5597874272072E+38)

preferences:
207.2 ms | 402 KiB | 308 Q