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; }

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)
8.3.60.0170.00318.30
8.3.50.0130.00622.05
8.3.40.0110.00318.61
8.3.30.0060.00919.01
8.3.20.0110.00420.33
8.3.10.0070.00021.92
8.3.00.0060.00322.52
8.2.180.0090.00916.63
8.2.170.0130.00722.96
8.2.160.0100.00319.16
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0160.00326.16
8.2.120.0040.00417.75
8.2.110.0070.01322.19
8.2.100.0080.00419.70
8.2.90.0040.00419.21
8.2.80.0000.00817.97
8.2.70.0050.00317.63
8.2.60.0000.00917.93
8.2.50.0050.00318.07
8.2.40.0030.00518.22
8.2.30.0050.00218.07
8.2.20.0040.00417.61
8.2.10.0040.00419.57
8.2.00.0050.00317.79
8.1.280.0080.00625.92
8.1.270.0090.00922.09
8.1.260.0040.00426.35
8.1.250.0070.00728.09
8.1.240.0090.00023.79
8.1.230.0060.00619.15
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0050.00517.35
8.1.190.0050.00317.53
8.1.180.0050.00318.10
8.1.170.0040.00418.59
8.1.160.0100.00022.02
8.1.150.0000.00818.54
8.1.140.0060.00317.48
8.1.130.0050.00317.69
8.1.120.0040.00417.44
8.1.110.0050.00317.34
8.1.100.0090.00017.46
8.1.90.0070.00017.38
8.1.80.0000.00817.34
8.1.70.0070.00017.39
8.1.60.0030.00717.59
8.1.50.0050.00217.55
8.1.40.0020.00517.50
8.1.30.0000.00717.52
8.1.20.0000.00917.66
8.1.10.0000.00817.45
8.1.00.0040.00417.53
8.0.300.0040.00418.77
8.0.290.0070.00017.18
8.0.280.0000.00718.30
8.0.270.0040.00417.29
8.0.260.0030.00316.73
8.0.250.0000.00716.85
8.0.240.0000.00816.96
8.0.230.0050.00216.84
8.0.220.0000.00716.92
8.0.210.0030.00316.78
8.0.200.0000.00716.98
8.0.190.0000.00716.79
8.0.180.0020.00516.82
8.0.170.0040.00416.82
8.0.160.0040.00416.75
8.0.150.0030.00316.81
8.0.140.0000.00816.83
8.0.130.0050.00013.35
8.0.120.0020.00516.87
8.0.110.0000.00716.78
8.0.100.0050.00216.77
8.0.90.0040.00417.00
8.0.80.0130.00316.87
8.0.70.0040.00416.84
8.0.60.0030.00316.72
8.0.50.0040.00416.77
8.0.30.0120.01217.09
8.0.20.0050.01517.40
8.0.10.0040.00417.01
8.0.00.0070.01116.64
7.4.330.0060.00015.00
7.4.320.0000.00616.40
7.4.300.0000.00616.49
7.4.290.0070.00016.58
7.4.280.0000.00716.43
7.4.270.0030.00316.58
7.4.260.0070.00016.50
7.4.250.0070.00016.36
7.4.240.0020.00516.55
7.4.230.0040.00416.59
7.4.220.0100.01116.52
7.4.210.0070.01016.58
7.4.200.0040.00416.59
7.4.190.0000.00716.75
7.4.160.0110.00416.43
7.4.150.0110.00717.40
7.4.140.0080.00917.86
7.4.130.0060.01416.51
7.4.120.0030.01416.50
7.4.110.0060.00916.44
7.4.100.0140.00316.36
7.4.90.0120.00616.38
7.4.80.0130.01319.39
7.4.70.0090.00916.48
7.4.60.0000.01516.69
7.4.50.0060.00316.30
7.4.40.0040.01522.77
7.4.30.0060.00916.40
7.4.00.0030.01315.09
7.3.330.0000.00513.16
7.3.320.0000.00513.25
7.3.310.0000.00716.31
7.3.300.0030.00316.30
7.3.290.0120.00916.25
7.3.280.0080.00916.34
7.3.270.0080.00817.40
7.3.260.0100.01016.27
7.3.250.0130.00616.46
7.3.240.0220.00016.25
7.3.230.0080.00816.39
7.3.210.0070.01016.35
7.3.200.0090.00619.39
7.3.190.0100.01016.27
7.3.180.0080.00816.42
7.3.170.0080.01216.37
7.3.160.0110.00616.28
7.3.120.0030.01014.64
7.2.330.0080.00816.68
7.2.320.0070.01016.77
7.2.310.0130.00316.68
7.2.300.0150.00616.51
7.2.290.0070.01116.66
7.2.00.0030.01019.43
7.1.100.0000.01117.98
7.1.70.0060.00317.16
7.1.60.0140.01019.82
7.1.50.0030.00717.09
7.1.00.0100.07022.54
7.0.200.0030.01016.69
7.0.140.0030.07322.04
7.0.60.0100.05320.07
7.0.50.0070.03717.88
7.0.40.0100.06319.98
7.0.30.0270.04320.04
7.0.20.0470.06320.16
7.0.10.0030.05720.16
7.0.00.0070.08020.16
5.6.280.0030.07321.10
5.6.210.0070.08020.64
5.6.200.0130.07318.17
5.6.190.0070.04320.48
5.6.180.0370.07020.39
5.6.170.0430.04720.38
5.6.160.0070.06020.38
5.6.150.0030.06318.18
5.6.140.0030.08318.11
5.6.130.0030.04718.16
5.6.120.0100.05321.11
5.6.110.0130.06321.00
5.6.100.0100.06320.98
5.6.90.0170.07720.88
5.6.80.0000.04020.53
5.6.70.4530.04020.38
5.5.350.0130.08020.46
5.5.340.0030.05717.98
5.5.330.0100.08020.19
5.5.320.0230.03720.22
5.5.310.0300.03320.28
5.5.300.0130.07317.96
5.5.290.0130.03318.01
5.5.280.0070.05320.76
5.5.270.0070.06020.76
5.5.260.0100.08020.71
5.5.250.0100.05020.58
5.5.240.0030.03720.26
5.4.450.0070.06319.52
5.4.440.0770.05019.45
5.4.430.0230.06719.45
5.4.420.0100.05719.42
5.4.410.0230.06719.04
5.4.400.0000.06018.50
5.4.390.0200.05018.46
5.4.380.0330.04318.52
5.4.370.0170.05318.74
5.4.360.0230.04718.56
5.4.350.0170.06718.59
5.4.340.0130.05718.46
5.4.320.0050.04812.45
5.4.310.0060.04212.45
5.4.300.0070.03512.45
5.4.290.0050.03912.45
5.4.280.0060.03612.35
5.4.270.0170.05318.95
5.4.260.0130.04718.92
5.4.250.0070.05718.95
5.4.240.0100.05318.81
5.4.230.0070.06018.95
5.4.220.0230.06718.94
5.4.210.0170.05318.90
5.4.200.0230.06718.73
5.4.190.0130.04719.04
5.4.180.0100.07318.73
5.4.170.0170.06719.04
5.4.160.0170.06719.02
5.4.150.0130.07718.91
5.4.140.0170.05716.45
5.4.130.0130.07016.55
5.4.120.0070.07316.39
5.4.110.0100.07016.46
5.4.100.0100.04316.59
5.4.90.0170.04316.52
5.4.80.0130.04716.52
5.4.70.0030.05316.57
5.4.60.0000.08316.52
5.4.50.0130.05016.31
5.4.40.0070.07016.47
5.4.30.0030.06716.52
5.4.20.0100.04716.45
5.4.10.0130.06716.52
5.4.00.0100.04716.00
5.3.290.0090.03912.80
5.3.280.0130.04714.71
5.3.270.0200.06314.69
5.3.260.0170.04314.75
5.3.250.0130.04714.64
5.3.240.0070.08014.59
5.3.230.0100.05014.41
5.3.220.0030.06314.40
5.3.210.0130.05014.71
5.3.200.0030.05714.56
5.3.190.0070.05314.50
5.3.180.0070.06014.71
5.3.170.0030.05714.73
5.3.160.0130.06314.55
5.3.150.0200.06314.68
5.3.140.0130.05014.72
5.3.130.0100.07714.66
5.3.120.0200.06314.59
5.3.110.0170.07014.53
5.3.100.0070.06314.23
5.3.90.0130.06314.00
5.3.80.0200.05714.00
5.3.70.0130.06014.00
5.3.60.0130.05713.99
5.3.50.0230.05014.14
5.3.40.0130.05713.75
5.3.30.0100.05313.90
5.3.20.0130.05313.84
5.3.10.0070.05713.59
5.3.00.0130.07313.62
5.2.170.0030.04711.24
5.2.160.0070.04711.28
5.2.150.0130.05711.37
5.2.140.0070.05011.36
5.2.130.0030.04311.23
5.2.120.0030.04311.33
5.2.110.0000.05011.29
5.2.100.0030.05311.33
5.2.90.0130.04711.33
5.2.80.0030.05711.23
5.2.70.0100.05011.02
5.2.60.0030.04311.19
5.2.50.0100.05011.17
5.2.40.0070.05310.93
5.2.30.0070.04710.95
5.2.20.0130.04311.07
5.2.10.0100.05011.00
5.2.00.0030.05710.93
5.1.60.0070.04710.07
5.1.50.0030.04010.02
5.1.40.0030.05310.05
5.1.30.0070.05310.37
5.1.20.0030.05310.46
5.1.10.0200.03010.38
5.1.00.0130.04310.15
5.0.50.0070.0338.52
5.0.40.0070.0378.49
5.0.30.0000.0678.20
5.0.20.0100.0308.16
5.0.10.0030.0478.21
5.0.00.0030.0408.36
4.4.90.0070.0237.20
4.4.80.0070.0277.20
4.4.70.0130.0177.20
4.4.60.0030.0207.20
4.4.50.0030.0307.20
4.4.40.0070.0377.20
4.4.30.0030.0237.20
4.4.20.0030.0337.20
4.4.10.0100.0237.20
4.4.00.0030.0477.20
4.3.110.0030.0307.20
4.3.100.0030.0277.20
4.3.90.0030.0277.20
4.3.80.0070.0407.20
4.3.70.0030.0307.20
4.3.60.0000.0337.20
4.3.50.0000.0277.20
4.3.40.0070.0407.20
4.3.30.0000.0237.20
4.3.20.0000.0307.20
4.3.10.0000.0237.20
4.3.00.0070.0236.47

preferences:
52.37 ms | 400 KiB | 5 Q