3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(10, 20); foreach($a as $k=>&$v) { unset($a[$k+1]); var_dump($a); } echo count($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)
8.3.40.0130.00618.84
8.3.30.0070.00719.04
8.3.20.0060.00320.29
8.3.10.0040.00422.14
8.3.00.0050.00322.43
8.2.170.0140.00722.96
8.2.160.0170.00319.26
8.2.150.0080.00024.18
8.2.140.0190.00024.66
8.2.130.0070.00726.16
8.2.120.0090.00619.77
8.2.110.0040.00422.13
8.2.100.0100.00317.70
8.2.90.0050.00317.84
8.2.80.0080.00017.97
8.2.70.0050.00317.50
8.2.60.0110.00017.55
8.2.50.0050.00318.07
8.2.40.0000.00718.22
8.2.30.0080.00018.12
8.2.20.0040.00417.50
8.2.10.0040.00417.64
8.2.00.0080.00017.69
8.1.270.0050.00318.57
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00622.55
8.1.230.0070.00420.97
8.1.220.0080.00017.79
8.1.210.0060.00318.99
8.1.200.0030.00717.36
8.1.190.0040.00417.52
8.1.180.0080.00020.30
8.1.170.0030.00518.41
8.1.160.0000.00722.18
8.1.150.0080.00018.64
8.1.140.0040.00417.49
8.1.130.0030.00317.87
8.1.120.0070.00017.48
8.1.110.0000.00917.37
8.1.100.0000.00717.40
8.1.90.0060.00317.47
8.1.80.0000.00717.50
8.1.70.0040.00417.35
8.1.60.0030.00617.52
8.1.50.0040.00417.39
8.1.40.0000.00817.54
8.1.30.0000.00917.61
8.1.20.0040.00417.59
8.1.10.0040.00417.50
8.1.00.0000.00817.39
8.0.300.0080.00020.04
8.0.290.0060.00317.16
8.0.280.0080.00018.39
8.0.270.0040.00417.13
8.0.260.0000.00616.75
8.0.250.0000.00716.83
8.0.240.0040.00416.98
8.0.230.0000.00716.86
8.0.220.0070.00016.86
8.0.210.0000.00616.85
8.0.200.0000.00616.94
8.0.190.0000.00916.98
8.0.180.0000.00816.79
8.0.170.0060.00316.95
8.0.160.0020.00516.79
8.0.150.0070.00016.95
8.0.140.0000.00716.82
8.0.130.0000.00513.27
8.0.120.0030.00516.89
8.0.110.0040.00416.93
8.0.100.0000.00716.76
8.0.90.0000.00716.68
8.0.80.0110.00916.89
8.0.70.0000.00816.76
8.0.60.0000.00716.73
8.0.50.0030.00516.88
8.0.30.0060.01316.98
8.0.20.0110.00817.40
8.0.10.0000.00716.84
8.0.00.0080.01016.83
7.4.330.0050.00015.00
7.4.320.0000.00616.61
7.4.300.0030.00316.51
7.4.290.0000.00716.55
7.4.280.0040.00416.59
7.4.270.0030.00316.62
7.4.260.0030.00916.53
7.4.250.0040.00416.48
7.4.240.0070.00016.41
7.4.230.0070.00016.71
7.4.220.0140.00416.37
7.4.210.0100.00516.54
7.4.200.0030.00316.67
7.4.190.0070.00016.36
7.4.160.0060.01016.37
7.4.150.0110.00717.40
7.4.140.0110.00917.86
7.4.130.0150.00416.49
7.4.120.0100.00816.42
7.4.110.0170.00616.47
7.4.100.0040.01316.53
7.4.90.0070.01316.43
7.4.80.0060.01019.39
7.4.70.0000.01616.24
7.4.60.0110.00716.59
7.4.50.0040.00016.56
7.4.40.0070.01022.77
7.4.30.0160.00316.39
7.4.00.0030.01415.11
7.3.330.0000.00513.01
7.3.320.0000.00512.95
7.3.310.0070.00016.13
7.3.300.0070.00016.20
7.3.290.0070.00716.30
7.3.280.0080.00816.24
7.3.270.0110.00717.40
7.3.260.0130.00316.37
7.3.250.0120.00816.44
7.3.240.0070.01016.41
7.3.230.0040.01216.39
7.3.210.0030.01416.57
7.3.200.0080.00816.27
7.3.190.0070.01016.26
7.3.180.0080.00816.22
7.3.170.0160.00016.55
7.3.160.0050.01116.37
7.3.120.0040.01215.11
7.2.330.0000.01716.46
7.2.320.0060.01816.65
7.2.310.0030.01316.52
7.2.300.0090.00916.62
7.2.290.0120.00416.80
7.2.00.0040.01119.32
7.1.100.0090.00318.06
7.1.70.0000.01017.11
7.1.60.0070.01719.82
7.1.50.0070.01816.88
7.1.00.0030.05722.41
7.0.200.0270.00714.84
7.0.140.0030.07722.21
7.0.60.0000.07319.85
7.0.50.0070.08017.79
7.0.40.0070.04720.23
7.0.30.0330.07020.16
7.0.20.0370.07320.18
7.0.10.0170.05720.21
7.0.00.0170.05020.17
5.6.280.0000.07720.99
5.6.210.0030.04020.50
5.6.200.0070.07318.19
5.6.190.0130.07320.67
5.6.180.0000.04320.33
5.6.170.0270.05020.46
5.6.160.0170.07320.46
5.6.150.0030.04318.22
5.6.140.0170.03318.09
5.6.130.0070.05318.18
5.6.120.0030.05321.00
5.6.110.0030.04020.98
5.6.100.0030.04021.00
5.6.90.0070.04021.00
5.6.80.0070.04320.28
5.6.70.0270.07320.50
5.5.350.0100.08720.34
5.5.340.0100.07717.98
5.5.330.0070.05020.21
5.5.320.0270.07020.50
5.5.310.0300.08320.34
5.5.300.0000.05018.01
5.5.290.0100.06717.95
5.5.280.0030.06320.88
5.5.270.0030.05020.73
5.5.260.0100.08020.86
5.5.250.0070.07020.46
5.5.240.0200.07020.14
5.4.450.0070.07719.61
5.4.440.0700.05719.58
5.4.430.0130.06019.25
5.4.420.0100.05319.48
5.4.410.0100.06019.11
5.4.400.0370.05018.65
5.4.390.0430.06718.76
5.4.380.0370.04718.67
5.4.370.0130.05018.59
5.4.360.0130.05018.69
5.4.350.0080.03511.98
5.4.340.0060.03611.97
5.4.320.0090.03312.46
5.4.310.0040.04012.45
5.4.300.0050.03712.46
5.4.290.0060.03712.45
5.4.280.0030.03812.35
5.4.270.0050.04812.35
5.4.260.0070.04312.35
5.4.250.0270.06318.93
5.4.240.0130.06318.93
5.4.230.0100.05018.64
5.4.220.0230.06718.89
5.4.210.0100.06318.91
5.4.200.0130.04718.74
5.4.190.0100.05018.76
5.4.180.0130.04718.64
5.4.170.0070.05718.88
5.4.160.0070.05018.92
5.4.150.0000.06018.95
5.4.140.0030.05316.27
5.4.130.0070.04716.54
5.4.120.0100.04316.29
5.4.110.0130.04716.47
5.4.100.0130.04716.39
5.4.90.0130.04316.40
5.4.80.0130.06016.32
5.4.70.0100.04716.41
5.4.60.0070.05716.32
5.4.50.0170.04016.17
5.4.40.0100.05016.52
5.4.30.0170.04716.39
5.4.20.0100.04716.20
5.4.10.0170.04316.37
5.4.00.0030.05015.68
5.3.290.0060.04012.80
5.3.280.0100.05714.59
5.3.270.0170.04314.61
5.3.260.0030.08314.70
5.3.250.0070.05014.75
5.3.240.0100.04714.44
5.3.230.0070.05014.60
5.3.220.0100.04314.57
5.3.210.0070.06014.44
5.3.200.0030.05314.58
5.3.190.0200.03714.56
5.3.180.0070.05014.60
5.3.170.0130.04314.41
5.3.160.0030.05314.40
5.3.150.0100.05014.48
5.3.140.0070.07014.57
5.3.130.0100.05014.56
5.3.120.0100.07714.54
5.3.110.0100.05014.56
5.3.100.0130.07013.95
5.3.90.0170.04014.16
5.3.80.0070.04713.89
5.3.70.0030.05013.86
5.3.60.0070.06013.83
5.3.50.0130.04713.80
5.3.40.0170.04313.96
5.3.30.0130.04314.05
5.3.20.0100.04713.59
5.3.10.0170.03713.58
5.3.00.0100.04713.47
5.2.170.0070.04311.06
5.2.160.0130.03011.05
5.2.150.0000.05011.07
5.2.140.0100.04011.14
5.2.130.0200.03311.25
5.2.120.0100.04010.93
5.2.110.0000.04310.98
5.2.100.0130.03011.19
5.2.90.0100.03311.10
5.2.80.0100.03711.24
5.2.70.0070.04011.00
5.2.60.0100.03311.06
5.2.50.0100.04011.03
5.2.40.0130.04011.01
5.2.30.0070.05010.99
5.2.20.0030.04310.95
5.2.10.0030.04310.94
5.2.00.0070.04010.93
5.1.60.0000.0539.99
5.1.50.0100.0339.99
5.1.40.0070.0409.97
5.1.30.0100.03010.30
5.1.20.0030.03710.52
5.1.10.0000.0479.98
5.1.00.0130.03010.12
5.0.50.0100.0238.77
5.0.40.0030.0278.39
5.0.30.0030.0578.25
5.0.20.0030.0278.15
5.0.10.0030.0278.31
5.0.00.0000.0478.20
4.4.90.0000.0237.18
4.4.80.0000.0237.18
4.4.70.0030.0207.18
4.4.60.0070.0177.18
4.4.50.0030.0207.18
4.4.40.0030.0307.18
4.4.30.0000.0277.18
4.4.20.0030.0237.18
4.4.10.0030.0207.18
4.4.00.0070.0377.18
4.3.110.0030.0207.18
4.3.100.0030.0237.18
4.3.90.0000.0237.18
4.3.80.0000.0337.18
4.3.70.0000.0237.18
4.3.60.0000.0237.18
4.3.50.0000.0277.18
4.3.40.0000.0337.18
4.3.30.0030.0207.18
4.3.20.0000.0307.18
4.3.10.0000.0277.18
4.3.00.0030.0276.75

preferences:
60.29 ms | 400 KiB | 5 Q