3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(':a' => 'b'); array_walk($arr, function ($val, $key) { $arr[':'.$key] = $val; unset($arr[$key]); }); var_export($arr);

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)
8.3.60.0090.00616.50
8.3.50.0120.00722.10
8.3.40.0170.00318.76
8.3.30.0110.00419.09
8.3.20.0070.00020.34
8.3.10.0000.00821.81
8.3.00.0080.00019.08
8.2.180.0140.00716.75
8.2.170.0110.00422.96
8.2.160.0100.00322.30
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00419.54
8.2.110.0090.00020.95
8.2.100.0040.00717.91
8.2.90.0040.00417.88
8.2.80.0060.00318.77
8.2.70.0080.00017.75
8.2.60.0080.00017.61
8.2.50.0000.00817.93
8.2.40.0030.00519.50
8.2.30.0040.00419.45
8.2.20.0050.00217.63
8.2.10.0040.00418.09
8.2.00.0000.00717.74
8.1.280.0000.01425.92
8.1.270.0090.00019.00
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0040.00719.13
8.1.230.0070.00722.80
8.1.220.0040.00418.64
8.1.210.0060.00318.77
8.1.200.0050.00317.66
8.1.190.0000.00817.23
8.1.180.0030.00518.10
8.1.170.0030.00617.62
8.1.160.0000.00722.03
8.1.150.0040.00418.86
8.1.140.0030.00517.45
8.1.130.0000.00717.73
8.1.120.0000.00717.50
8.1.110.0040.00417.34
8.1.100.0070.00017.34
8.1.90.0040.00417.32
8.1.80.0040.00417.47
8.1.70.0030.00317.50
8.1.60.0040.00517.57
8.1.50.0050.00517.47
8.1.40.0040.00417.41
8.1.30.0000.00917.66
8.1.20.0000.00717.49
8.1.10.0070.00017.39
8.1.00.0040.00417.38
8.0.300.0000.00718.77
8.0.290.0030.00516.75
8.0.280.0000.00818.44
8.0.270.0000.00717.16
8.0.260.0030.00317.25
8.0.250.0030.00316.99
8.0.240.0000.00616.82
8.0.230.0070.00016.82
8.0.220.0000.00616.85
8.0.210.0070.00016.81
8.0.200.0050.00316.86
8.0.190.0000.00916.91
8.0.180.0000.00716.93
8.0.170.0040.00416.92
8.0.160.0030.00316.94
8.0.150.0000.00716.78
8.0.140.0030.00316.86
8.0.130.0060.00013.39
8.0.120.0000.00716.71
8.0.110.0000.00716.80
8.0.100.0030.00516.74
8.0.90.0000.00716.78
8.0.80.0090.00916.77
8.0.70.0000.00716.77
8.0.60.0000.00716.75
8.0.50.0040.00416.92
8.0.30.0090.01516.97
8.0.20.0060.01317.40
8.0.10.0050.00316.80
8.0.00.0080.00916.64
7.4.330.0000.00515.09
7.4.320.0000.00716.59
7.4.300.0000.00616.59
7.4.290.0030.00316.61
7.4.280.0030.00616.49
7.4.270.0030.00516.57
7.4.260.0070.00016.47
7.4.250.0000.00716.45
7.4.240.0000.00716.50
7.4.230.0000.00716.35
7.4.220.0130.00316.46
7.4.210.0070.01116.57
7.4.200.0070.00016.34
7.4.160.0090.00616.72
7.4.150.0050.01417.40
7.4.140.0140.00517.86
7.4.130.0100.00616.43
7.4.120.0090.00716.52
7.4.110.0080.00816.39
7.4.100.0180.00016.31
7.4.90.0000.01716.66
7.4.80.0150.00619.39
7.4.70.0060.01016.56
7.4.60.0070.01016.55
7.4.50.0040.00416.32
7.4.40.0120.00416.63
7.4.30.0100.00716.44
7.4.00.0070.01015.00
7.3.330.0030.00313.23
7.3.320.0030.00313.18
7.3.310.0030.00316.33
7.3.300.0030.00316.41
7.3.290.0000.00716.37
7.3.280.0130.00416.37
7.3.270.0150.00317.40
7.3.260.0090.01016.55
7.3.250.0070.01016.34
7.3.240.0120.00916.41
7.3.230.0110.00716.64
7.3.210.0070.01016.32
7.3.200.0080.01119.39
7.3.190.0150.00616.41
7.3.180.0120.00316.31
7.3.170.0100.00716.35
7.3.160.0090.00616.41
7.3.10.0080.00816.27
7.3.00.0060.00816.46
7.2.330.0040.01316.47
7.2.320.0050.01116.57
7.2.310.0090.00916.56
7.2.300.0100.01316.52
7.2.290.0110.00716.30
7.2.130.0110.00716.38
7.2.120.0030.01316.53
7.2.110.0110.00616.64
7.2.100.0110.00616.68
7.2.90.0100.01116.69
7.2.80.0090.00716.52
7.2.70.0100.00816.67
7.2.60.0090.00816.67
7.2.50.0160.00716.50
7.2.40.0050.01016.38
7.2.30.0120.00716.65
7.2.20.0120.00516.51
7.2.10.0130.00616.56
7.2.00.0100.00817.28
7.1.250.0160.00615.80
7.1.200.0040.01015.55
7.1.100.0000.01118.10
7.1.70.0030.00517.25
7.1.60.0070.01019.46
7.1.50.0090.01516.84
7.1.00.0000.08022.43
7.0.200.0030.00616.66
7.0.140.0000.06022.11
7.0.60.0070.09020.01
7.0.50.0030.05017.86
7.0.40.0000.08720.13
7.0.30.0300.05020.08
7.0.20.0170.06720.06
7.0.10.0000.05020.06
7.0.00.0070.07720.25
5.6.280.0000.07320.86
5.6.210.0030.08720.61
5.6.200.0130.04018.13
5.6.190.0070.04320.39
5.6.180.0400.07020.67
5.6.170.0270.04020.53
5.6.160.0100.07720.50
5.6.150.0100.07018.17
5.6.140.0030.04018.11
5.6.130.0000.04318.14
5.6.120.0000.05021.00
5.6.110.0130.07721.11
5.6.100.0200.07321.01
5.6.90.0070.06021.02
5.6.80.0070.08020.41
5.5.350.0230.05720.43
5.5.340.0070.04018.02
5.5.330.0130.07020.28
5.5.320.0430.07020.20
5.5.310.0330.04020.42
5.5.300.0030.04017.98
5.5.290.0070.08017.98
5.5.280.0100.07020.85
5.5.270.0030.09020.87
5.5.260.0100.07320.80
5.5.250.0070.07720.58
5.5.240.0000.08020.23
5.4.450.0630.07719.55
5.4.440.0230.05019.18
5.4.430.0170.05719.48
5.4.420.0200.05719.54
5.4.410.0230.04719.35
5.4.400.0200.05719.15
5.4.390.1100.04718.71
5.4.380.0930.04318.59
5.4.370.0770.05318.59
5.4.360.1100.05018.50
5.4.350.0970.07018.76
5.4.340.0800.05318.57
5.4.320.1000.05718.74
5.4.310.1130.05718.50
5.4.300.1070.06018.62
5.4.290.0830.05318.46
5.4.280.0930.05318.69
5.4.270.1100.04318.70
5.4.260.0830.05318.61
5.4.250.0870.05018.78
5.4.240.0870.05018.68
5.4.230.0900.06018.49
5.4.220.1100.06018.58
5.4.210.0970.04718.51
5.4.200.0970.04716.61
5.4.190.0900.05018.72
5.4.180.1170.05718.73
5.4.170.0930.06318.79
5.4.160.0870.07018.79
5.4.150.1100.05318.50
5.4.140.1030.04716.29
5.4.130.0900.05016.45
5.4.120.0770.06016.29
5.4.110.1000.05716.25
5.4.100.0870.06016.24
5.4.90.0870.05716.30
5.4.80.0970.05316.30
5.4.70.1000.05316.26
5.4.60.0900.05716.22
5.4.50.1000.04716.18
5.4.40.0930.04716.13
5.4.30.0900.04316.27
5.4.20.0870.04316.18
5.4.10.0830.05716.21
5.4.00.1000.06315.79
5.3.290.0900.04714.74
5.3.280.0830.05714.64
5.3.270.0870.06314.77
5.3.260.0870.06014.62
5.3.250.1100.06014.82
5.3.240.0930.05314.73
5.3.230.0900.06014.57
5.3.220.0900.06314.56
5.3.210.1000.05314.62
5.3.200.0930.05314.66
5.3.190.0970.05314.72
5.3.180.0770.05014.62
5.3.170.1000.06014.78
5.3.160.0830.06014.61
5.3.150.0930.07314.76
5.3.140.1070.05314.73
5.3.130.0970.06714.66
5.3.120.1070.05314.76
5.3.110.0970.06014.52
5.3.100.0870.05714.09
5.3.90.0800.05314.05
5.3.80.0930.05314.04
5.3.70.0870.05014.18
5.3.60.0870.04314.02
5.3.50.0830.05014.17
5.3.40.0870.04714.00
5.3.30.0870.05314.11
5.3.20.0830.04713.70
5.3.10.0830.04313.69
5.3.00.0770.05313.70
5.2.170.0630.04311.05
5.2.160.0600.04311.13
5.2.150.0770.04711.18
5.2.140.0770.03011.19
5.2.130.0770.04311.05
5.2.120.0700.04011.09
5.2.110.0700.04011.15
5.2.100.0730.03311.15
5.2.90.0770.04311.26
5.2.80.0670.04011.13
5.2.70.0700.04011.09
5.2.60.0700.04011.20
5.2.50.0770.04711.05
5.2.40.0730.04311.00
5.2.30.0600.05311.02
5.2.20.0600.06010.91
5.2.10.0670.04010.98
5.2.00.0530.03710.75
5.1.60.0600.03310.10
5.1.50.0530.03710.11
5.1.40.0570.03710.01
5.1.30.0470.04010.39
5.1.20.0630.03710.46
5.1.10.0630.03310.03
5.1.00.0670.03310.08
5.0.50.0330.0278.66
5.0.40.0270.0278.49
5.0.30.0270.0478.36
5.0.20.0300.0278.32
5.0.10.0400.0308.16
5.0.00.0330.0578.22
4.4.90.0270.0235.87
4.4.80.0270.0275.89
4.4.70.0330.0235.89
4.4.60.0370.0205.85
4.4.50.0300.0235.87
4.4.40.0300.0335.94
4.4.30.0300.0205.87
4.4.20.0230.0235.98
4.4.10.0330.0235.94
4.4.00.0330.0335.86
4.3.110.0330.0275.80
4.3.100.0330.0235.83
4.3.90.0400.0175.82
4.3.80.0330.0335.87
4.3.70.0300.0205.91
4.3.60.0300.0235.89
4.3.50.0330.0205.84
4.3.40.0330.0405.76
4.3.30.0130.0274.96
4.3.20.0130.0234.96
4.3.10.0100.0274.96
4.3.00.0100.0279.22

preferences:
47.45 ms | 401 KiB | 5 Q