3v4l.org

run code in 500+ PHP versions simultaneously
<?php $x = 4; if($x == 1){ class X{} $x = []; $x["x"] = new X(); $x["y"] = "5"; echo serialize($x); // a:2:{s:1:"x";O:1:"X":0:{}s:1:"y";s:1:"5";} } elseif($x == 2){ $x = unserialize('a:2:{s:1:"x";O:1:"X":0:{}s:1:"y";s:1:"5";}'); print_r($x); /* Array ( [x] => __PHP_Incomplete_Class Object ( [__PHP_Incomplete_Class_Name] => X ) [y] => 5 ) */ } elseif($x == 3){ enum Y{ case Y; } $x = []; $x["x"] = Y::Y; $x["y"] = "5"; echo serialize($x); // a:2:{s:1:"x";E:3:"Y:Y";s:1:"y";s:1:"5";} } elseif($x == 4){ $x = unserialize('a:2:{s:1:"x";E:3:"Y:Y";s:1:"y";s:1:"5";}'); print_r($x); }

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)
8.5.90.0080.00716.79
8.5.80.0030.00416.77
8.5.70.0100.00918.48
8.5.60.0110.00816.79
8.5.50.0040.00816.55
8.5.30.0130.00517.85
8.5.20.0090.00820.13
8.5.10.0090.01016.79
8.5.00.0110.01119.66
8.4.240.0140.00619.50
8.4.230.0070.01419.49
8.4.220.0110.01019.41
8.4.210.0070.00219.39
8.4.180.0110.01119.61
8.4.170.0100.01223.73
8.4.160.0060.00523.91
8.4.150.0060.00716.74
8.4.140.0130.00817.80
8.4.130.0130.00717.79
8.4.120.0130.00720.82
8.4.110.0130.00618.80
8.4.100.0120.00817.94
8.4.90.0110.00817.61
8.4.80.0410.00917.53
8.4.70.0400.01017.62
8.4.60.0410.00617.70
8.4.50.0330.00717.64
8.4.40.0390.00717.43
8.4.30.0430.00917.49
8.4.20.0390.01017.64
8.4.10.0410.00917.71
8.3.330.0110.00918.35
8.3.320.0100.00818.43
8.3.310.0060.00318.35
8.3.300.0090.01118.94
8.3.290.0130.00720.66
8.3.280.0090.01218.37
8.3.270.0110.00916.75
8.3.260.0110.00916.58
8.3.250.0130.00517.20
8.3.240.0110.00216.74
8.3.230.0040.00416.95
8.3.220.0360.01216.97
8.3.210.0320.00816.97
8.3.200.0300.00416.97
8.3.190.0290.00816.97
8.3.180.0310.00516.97
8.3.170.0400.00916.97
8.3.160.0390.00816.97
8.3.150.0360.00616.97
8.3.140.0300.00616.97
8.3.130.0280.00616.97
8.3.120.0310.00416.97
8.3.110.0310.00916.97
8.3.100.0410.00916.97
8.3.90.0310.00616.97
8.3.80.0360.00516.97
8.3.70.0360.00816.97
8.3.60.0330.00716.97
8.3.50.0400.00916.97
8.3.40.0450.00517.34
8.3.30.0290.00617.34
8.3.20.0210.00817.49
8.3.10.0250.00517.39
8.3.00.0250.00417.35
8.2.320.0120.00718.23
8.2.310.0070.00818.14
8.2.300.0110.00820.50
8.2.290.0100.00818.56
8.2.280.0230.01016.97
8.2.270.0320.01016.97
8.2.260.0330.00916.97
8.2.250.0350.00716.97
8.2.240.0350.00616.97
8.2.230.0360.00816.97
8.2.220.0340.00416.97
8.2.210.0220.00616.97
8.2.200.0260.00516.97
8.2.190.0260.00716.97
8.2.180.0270.00716.97
8.2.170.0330.00817.54
8.2.160.0310.00717.58
8.2.150.0360.00817.45
8.2.140.0370.00817.41
8.2.130.0410.00817.30
8.2.120.0360.00717.38
8.2.110.0290.00517.49
8.2.100.0310.01117.51
8.2.90.0310.00817.47
8.2.80.0300.01017.15
8.2.70.0340.00817.32
8.2.60.0330.00517.47
8.2.50.0250.00917.29
8.2.40.0380.00717.29
8.2.30.0360.00917.39
8.2.20.0300.01017.54
8.2.10.0340.00617.54
8.2.00.0360.00317.53
8.1.340.0130.00817.77

preferences:
72.8 ms | 895 KiB | 5 Q