3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new BCMath\Number("1.2"); $b = gmp_init("3"); var_dump( // $a + $b, $b + $a );

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.130.0030.00616.85
8.3.120.0000.00820.72
8.3.110.0000.00918.63
8.3.100.0090.01218.35
8.3.50.0000.01016.46
8.2.240.0090.00016.88
8.2.230.0000.00818.37
8.2.220.0100.00618.27
8.1.300.0030.00618.34

preferences:
29.86 ms | 403 KiB | 5 Q