3v4l.org

run code in 500+ PHP versions simultaneously
<?php $mappings = [ '21021200' => '21028800', ]; var_dump(isset($mappings[21021200])); var_dump(isset($mappings['21021200']));

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)
8.5.30.0100.00817.48
8.5.20.0110.00619.26
8.5.10.0060.01116.81
8.5.00.0170.00819.92
8.4.180.0160.00619.56
8.4.170.0100.01223.96
8.4.160.0100.01223.91
8.4.150.0080.00416.81
8.4.140.0100.01017.37
8.4.130.0020.00618.66
8.4.120.0110.00923.83
8.4.110.0050.00518.66
8.4.100.0100.01019.05
8.4.90.0110.01020.74
8.4.80.0110.00617.79
8.4.70.0140.00617.50
8.4.60.0130.00518.70
8.4.50.0060.00320.59
8.4.40.0040.00419.35
8.4.30.0100.01020.67
8.4.20.0120.00817.82
8.4.10.0000.00919.39
8.3.300.0100.01120.80
8.3.290.0130.00818.18
8.3.280.0140.01018.34
8.3.270.0170.00716.67
8.3.260.0110.00816.40
8.3.250.0130.00318.93
8.3.240.0100.00917.00
8.3.230.0120.00616.51
8.3.220.0080.01018.90
8.3.210.0120.00616.54
8.3.200.0040.00516.54
8.3.190.0120.00617.26
8.3.180.0100.00916.35
8.3.170.0090.00916.59
8.3.160.0080.00016.48
8.3.150.0160.00617.21
8.3.140.0140.00416.43
8.3.130.0030.00618.39
8.3.120.0040.00720.84
8.3.110.0130.00716.39
8.3.100.0080.00016.41
8.3.90.0040.00418.17
8.3.80.0030.00618.56
8.3.70.0070.00716.58
8.3.60.0150.00018.30
8.3.50.0130.00324.56
8.3.40.0100.01018.66
8.3.30.0100.00718.56
8.3.20.0040.00421.81
8.3.10.0040.00421.96
8.3.00.0090.00726.62
8.2.300.0140.00617.94
8.2.290.0060.00920.44
8.2.280.0050.00418.53
8.2.270.0140.00316.68
8.2.260.0120.00618.86
8.2.250.0080.00016.38
8.2.240.0060.00317.05
8.2.230.0070.00322.58
8.2.220.0050.00324.06
8.2.210.0040.00426.77
8.2.200.0080.00016.75
8.2.190.0070.00716.58
8.2.180.0100.00318.42
8.2.170.0150.00022.96
8.2.160.0130.00322.32
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00421.07
8.2.110.0060.00322.07
8.2.100.0190.00318.53
8.2.90.0130.00718.10
8.2.80.0150.00418.64
8.2.70.0170.00318.23
8.2.60.0170.00218.33
8.2.50.0150.00418.86
8.2.40.0100.00518.59
8.2.30.0110.00618.41
8.2.20.0140.00418.06
8.2.10.0080.00818.38
8.2.00.0130.00418.41
8.1.340.0100.01019.78
8.1.330.0100.00821.77
8.1.320.0110.00815.96
8.1.310.0110.00716.66
8.1.300.0030.00616.17
8.1.290.0120.00030.84
8.1.280.0090.00925.92
8.1.270.0040.00424.66
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0060.00319.56
8.1.230.0090.00519.22
8.1.220.0120.00618.09
8.1.210.0170.00118.61
8.1.200.0150.00317.83
8.1.190.0160.00217.72
8.1.180.0150.00318.66
8.1.170.0150.00418.18
8.1.160.0180.00118.33
8.1.150.0130.00518.30
8.1.140.0120.00518.26
8.1.130.0160.00317.81
8.1.120.0150.00417.83
8.1.110.0100.00817.81
8.1.100.0110.00617.82
8.1.90.0140.00317.78
8.1.80.0100.00817.81
8.1.70.0110.00717.81
8.1.60.0140.00517.86
8.1.50.0150.00417.79
8.1.40.0120.00717.80
8.1.30.0100.00717.88
8.1.20.0120.00617.90
8.1.10.0130.00417.86
8.1.00.0110.00617.82
8.0.300.0140.00418.61
8.0.290.0090.00817.53
8.0.280.0100.00818.10
8.0.270.0170.00017.60
8.0.260.0110.00617.61
8.0.250.0090.00717.66
8.0.240.0120.00317.65
8.0.230.0130.00317.61
8.0.220.0120.00517.63
8.0.210.0100.00717.59
8.0.200.0130.00517.60
8.0.190.0130.00417.65
8.0.180.0080.00917.62
8.0.170.0120.00417.62
8.0.160.0110.00517.60
8.0.150.0160.00217.61
8.0.140.0120.00517.63
8.0.130.0110.00516.46
8.0.120.0100.00717.58
8.0.110.0120.00517.56
8.0.100.0130.00517.63
8.0.90.0150.00317.55
8.0.80.0170.00417.42
8.0.70.0130.00517.63
8.0.60.0150.00417.63
8.0.50.0140.00417.59
8.0.30.0130.00817.69
8.0.20.0150.00517.57
8.0.10.0110.00617.62
8.0.00.0140.00617.54
7.4.330.0080.00517.20
7.4.320.0140.00317.54
7.4.300.0110.00517.47
7.4.290.0120.00417.49
7.4.280.0130.00417.53
7.4.270.0130.00317.52
7.4.260.0110.00316.42
7.4.250.0100.00617.45
7.4.240.0090.00417.30
7.4.230.0100.00617.47
7.4.220.0080.00617.19
7.4.210.0110.00617.07
7.4.200.0140.00117.46
7.4.190.0160.00518.03
7.4.180.0180.00118.03
7.4.160.0150.00618.03
7.4.150.0180.00218.03
7.4.140.0180.00218.03
7.4.130.0100.00917.14
7.4.120.0120.00817.50
7.4.110.0180.00417.48
7.4.100.0110.00817.46
7.4.90.0120.00717.49
7.4.80.0150.00418.48
7.4.70.0130.00517.44
7.4.60.0120.00717.45
7.4.50.0140.00517.38
7.4.40.0140.00517.38
7.4.30.0130.00617.42
7.4.20.0130.00617.47
7.4.10.0120.00817.46
7.4.00.0150.00517.46
7.3.330.0120.00617.41
7.3.320.0090.00716.36
7.3.310.0090.00717.45
7.3.300.0110.00417.39
7.3.290.0120.00616.95
7.3.280.0140.00517.42
7.3.270.0190.00118.03
7.3.260.0130.00817.39
7.3.250.0140.00518.03
7.3.240.0130.00718.03
7.3.230.0080.01117.51
7.3.220.0150.00518.03
7.3.210.0160.00317.46
7.3.200.0150.00417.40
7.3.190.0170.00417.36
7.3.180.0130.00717.52
7.3.170.0180.00117.38
7.3.160.0140.00717.39
7.3.150.0110.00917.51
7.3.140.0150.00517.45
7.3.130.0130.00617.42
7.3.120.0120.00717.33
7.3.110.0130.00717.52
7.3.100.0140.00417.38
7.3.90.0140.00617.39
7.3.80.0120.00717.41
7.3.70.0150.00417.45
7.3.60.0110.00817.39
7.3.50.0100.01017.41
7.3.40.0130.00517.40
7.3.30.0130.00517.37
7.3.20.0130.00717.45
7.3.10.0140.00617.46
7.3.00.0130.00717.46
7.2.340.0200.00318.03
7.2.330.0110.00917.54
7.2.320.0140.00617.51
7.2.310.0130.00617.53
7.2.300.0150.00417.54
7.2.290.0150.00517.43
7.2.280.0120.00917.47
7.2.270.0140.00417.52
7.2.260.0140.00517.52
7.2.250.0110.00817.56
7.2.240.0160.00417.47
7.2.230.0160.00417.45
7.2.220.0140.00517.50
7.2.210.0110.00717.44
7.2.200.0150.00417.48
7.2.190.0150.00617.52
7.2.180.0140.00517.50
7.2.170.0150.00417.47
7.2.160.0160.00317.50
7.2.150.0160.00517.53
7.2.140.0140.00617.53
7.2.130.0100.00917.49
7.2.120.0140.00517.50
7.2.110.0110.00817.50
7.2.100.0140.00617.49
7.2.90.0140.00717.50
7.2.80.0170.00817.49
7.2.70.0120.00717.41
7.2.60.0130.00617.54
7.2.50.0120.00717.54
7.2.40.0150.00517.51
7.2.30.0190.00217.50
7.2.20.0130.00617.43
7.2.10.0160.00517.49
7.2.00.0140.00717.49

preferences:
46.49 ms | 1511 KiB | 5 Q