3v4l.org

run code in 300+ PHP versions simultaneously
<?php $iterator = 10; $cat = array(1 => 'a',2 => 'b',3 => 'c'); foreach($cat as $k => &$c) { if ($iterator < 15) { $cat[$iterator] = $iterator; $iterator++; } echo $c; } var_dump($cat);

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)
8.3.40.0140.00718.84
8.3.30.0060.00918.90
8.3.20.0080.00020.33
8.3.10.0000.00822.11
8.3.00.0040.00422.46
8.2.170.0130.00722.96
8.2.160.0070.00719.41
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0080.00019.24
8.2.110.0030.00622.09
8.2.100.0060.00619.58
8.2.90.0090.00019.36
8.2.80.0070.00419.66
8.2.70.0060.00317.75
8.2.60.0070.00318.16
8.2.50.0040.00718.07
8.2.40.0000.00818.18
8.2.30.0030.00618.04
8.2.20.0050.00317.58
8.2.10.0000.00719.47
8.2.00.0030.00517.80
8.1.270.0050.00321.96
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.79
8.1.230.0000.01119.02
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0050.00317.54
8.1.180.0040.00418.10
8.1.170.0040.00418.66
8.1.160.0030.00621.88
8.1.150.0070.00018.69
8.1.140.0030.00717.46
8.1.130.0000.00817.85
8.1.120.0000.00717.42
8.1.110.0040.00317.45
8.1.100.0050.00217.43
8.1.90.0000.00717.45
8.1.80.0000.00717.41
8.1.70.0070.00017.43
8.1.60.0040.00717.50
8.1.50.0000.00817.55
8.1.40.0050.00217.52
8.1.30.0040.00417.66
8.1.20.0000.00817.68
8.1.10.0000.00717.52
8.1.00.0040.00417.39
8.0.300.0030.00418.77
8.0.290.0000.00717.18
8.0.280.0040.00418.33
8.0.270.0070.00017.25
8.0.260.0000.00616.82
8.0.250.0040.00416.91
8.0.240.0040.00416.88
8.0.230.0030.00616.99
8.0.220.0030.00316.77
8.0.210.0060.00316.96
8.0.200.0030.00316.80
8.0.190.0050.00316.85
8.0.180.0000.00816.80
8.0.170.0000.00916.79
8.0.160.0000.00716.85
8.0.150.0000.00816.83
8.0.140.0050.00216.75
8.0.130.0060.00013.33
8.0.120.0040.00416.80
8.0.110.0000.00716.84
8.0.100.0000.00816.87
8.0.90.0040.00416.89
8.0.80.0090.01216.91
8.0.70.0040.00416.70
8.0.60.0070.00016.89
8.0.50.0070.00016.91
8.0.30.0120.00716.98
8.0.20.0100.00817.40
8.0.10.0030.00516.81
8.0.00.0160.00516.76
7.4.330.0050.00015.00
7.4.320.0060.00016.61
7.4.300.0070.00016.50
7.4.290.0040.00416.57
7.4.280.0050.00216.59
7.4.270.0090.00016.57
7.4.260.0040.00416.54
7.4.250.0000.00816.50
7.4.240.0040.00416.58
7.4.230.0040.00416.40
7.4.220.0090.00916.54
7.4.210.0110.00616.66
7.4.200.0000.00716.58
7.4.190.0030.00316.54
7.4.160.0100.00716.69
7.4.150.0100.00717.40
7.4.140.0080.00817.86
7.4.130.0090.00916.62
7.4.120.0110.00916.59
7.4.110.0070.01116.53
7.4.100.0120.00616.36
7.4.90.0060.01216.65
7.4.80.0090.00919.39
7.4.70.0060.00916.43
7.4.60.0030.01316.42
7.4.50.0040.00416.52
7.4.40.0060.00822.77
7.4.30.0130.00516.43
7.4.00.0030.01215.05
7.3.330.0020.00213.31
7.3.320.0050.00013.25
7.3.310.0000.00816.13
7.3.300.0040.00316.26
7.3.290.0040.01616.36
7.3.280.0020.01416.37
7.3.270.0170.00017.40
7.3.260.0070.01116.27
7.3.250.0090.01016.37
7.3.240.0030.01216.50
7.3.230.0080.00916.39
7.3.210.0030.01516.58
7.3.200.0130.00719.39
7.3.190.0070.01516.31
7.3.180.0110.00416.36
7.3.170.0130.00316.52
7.3.160.0030.01516.21
7.3.120.0110.00414.91
7.2.330.0140.00316.53
7.2.320.0100.01016.41
7.2.310.0070.01016.50
7.2.300.0060.01016.66
7.2.290.0090.00916.53
7.1.70.0000.00717.19
7.1.60.0140.01019.82
7.1.50.0090.01217.00
7.1.00.0030.07722.30
7.0.200.0040.01216.87
7.0.140.0000.07722.07
7.0.60.0030.07319.86
7.0.50.0030.06017.77
7.0.40.0070.04020.04
7.0.30.0270.06720.20
7.0.20.0300.08320.13
7.0.10.0200.06720.30
7.0.00.0100.03720.20
5.6.280.0030.07321.14
5.6.210.0070.08020.75
5.6.200.0030.05318.16
5.6.190.0130.08320.64
5.6.180.4230.04320.61
5.6.170.0300.06020.61
5.6.160.0030.09020.53
5.6.150.0100.08018.20
5.6.140.0030.08318.19
5.6.130.0070.08318.09
5.6.120.0100.07021.09
5.6.110.0030.08020.89
5.6.100.0070.08320.98
5.6.90.0030.07721.13
5.6.80.0070.04020.35
5.6.70.0270.06720.37
5.5.350.0030.08020.44
5.5.340.0030.08317.95
5.5.330.0000.05020.29
5.5.320.0200.06020.32
5.5.310.0270.04720.41
5.5.300.0000.05317.95
5.5.290.0030.06317.98
5.5.280.0100.07720.87
5.5.270.0100.05720.96
5.5.260.0070.08020.76
5.5.250.0130.06020.54
5.5.240.0130.06320.04
5.4.450.0570.05319.52
5.4.440.0470.06019.43
5.4.430.0130.05719.46
5.4.420.0200.05719.33
5.4.410.0070.06019.14
5.4.400.0030.05718.51
5.4.390.0230.04718.61
5.4.380.0270.06018.64
5.4.370.0230.04718.71
5.4.360.0270.04018.52
5.4.350.0200.05718.49
5.4.340.0200.05718.69
5.4.320.0090.04212.45
5.4.310.0020.04212.45
5.4.300.0090.03912.46
5.4.290.0080.04512.45
5.4.280.0050.03612.35
5.4.270.0230.06318.86
5.4.260.0130.05718.93
5.4.250.0100.06318.75
5.4.240.0100.07318.90
5.4.230.0030.07719.00
5.4.220.0100.06018.95
5.4.210.0170.05019.02
5.4.200.0130.07318.99
5.4.190.0200.06319.05
5.4.180.0100.08019.02
5.4.170.0200.06019.02
5.4.160.0170.07018.93
5.4.150.0200.04718.95
5.4.140.0130.06316.39
5.4.130.0130.07016.28
5.4.120.0270.04716.63
5.4.110.0130.06716.42
5.4.100.0070.05716.47
5.4.90.0100.06016.28
5.4.80.0070.07016.27
5.4.70.0130.06316.26
5.4.60.0030.05316.54
5.4.50.0170.05316.30
5.4.40.0130.05716.33
5.4.30.0070.05316.25
5.4.20.0070.07016.53
5.4.10.0130.06316.54
5.4.00.0170.04315.89
5.3.290.0070.04912.80
5.3.280.0030.07014.70
5.3.270.0130.06714.73
5.3.260.0100.08014.53
5.3.250.0170.06314.75
5.3.240.0270.06014.78
5.3.230.0100.05014.64
5.3.220.0230.05014.61
5.3.210.0130.05014.70
5.3.200.0100.07714.63
5.3.190.0300.05014.63
5.3.180.0130.06014.39
5.3.170.0200.05314.49
5.3.160.0100.05714.75
5.3.150.0070.06314.62
5.3.140.0070.05714.55
5.3.130.0000.07014.69
5.3.120.0030.06714.69
5.3.110.0070.08014.70
5.3.100.0130.05014.02
5.3.90.0100.05313.83
5.3.80.0070.06014.18
5.3.70.0030.06014.07
5.3.60.0070.06714.07
5.3.50.0030.07014.02
5.3.40.0100.06713.88
5.3.30.0070.07313.90
5.3.20.0100.05013.75
5.3.10.0130.06313.63
5.3.00.0100.05713.63
5.2.170.0200.03311.07
5.2.160.0070.05311.19
5.2.150.0100.04310.95
5.2.140.0000.06311.26
5.2.130.0100.04711.20
5.2.120.0130.05011.20
5.2.110.0070.05311.21
5.2.100.0070.05311.33
5.2.90.0030.04711.33
5.2.80.0100.05010.88
5.2.70.0070.05711.21
5.2.60.0070.05311.27
5.2.50.0000.06011.12
5.2.40.0030.05710.89
5.2.30.0030.04011.16
5.2.20.0100.05310.94
5.2.10.0130.04010.99
5.2.00.0000.05010.93
5.1.60.0070.03310.07
5.1.50.0070.04710.02
5.1.40.0030.03310.17
5.1.30.0070.04010.55
5.1.20.0000.05310.47
5.1.10.0100.04010.36
5.1.00.0030.04010.38
5.0.50.0200.0238.57
5.0.40.0030.0378.28
5.0.30.0130.0338.55
5.0.20.0100.0338.16
5.0.10.0030.0278.48
5.0.00.0130.0478.25
4.4.90.0000.0307.18
4.4.80.0000.0277.18
4.4.70.0100.0207.18
4.4.60.0070.0177.18
4.4.50.0000.0277.18
4.4.40.0000.0377.18
4.4.30.0070.0237.18
4.4.20.0030.0237.18
4.4.10.0030.0307.18
4.4.00.0000.0407.18
4.3.110.0000.0337.18
4.3.100.0000.0277.18
4.3.90.0100.0237.18
4.3.80.0100.0307.18
4.3.70.0070.0307.18
4.3.60.0000.0237.18
4.3.50.0000.0237.18
4.3.40.0100.0377.18
4.3.30.0000.0237.18
4.3.20.0070.0177.18
4.3.10.0000.0337.18
4.3.00.0170.0176.44

preferences:
43.35 ms | 400 KiB | 5 Q