3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ [ 'a' => 1, 'b' => 2, 'c' => 3], [ 'a' => 4, 'b' => 5, 'c' => 6], [ 'a' => 7, 'b' => 8, 'c' => 9] ]; $array2 = [ [ 'a' => 1, 'b' => 2, 'c' => 3], [ 'a' => 4, 'b' => 5, 'c' => 6], [ 'a' => 7, 'b' => 8, 'c' => 9] ]; foreach ($array as &$val) { unset($val['a']); } /*foreach ($array2 as $key => &$val) { unset($val['a']); }*/ echo 'First array: ' . PHP_EOL; foreach ($array as $key => $val) { echo $key . ' => ' . $val['b'] . ', ' . $val['c'] . PHP_EOL; } echo 'Second array: ' . PHP_EOL; foreach ($array2 as $key => $val) { echo $key . ' => ' . $val['b'] . ', ' . $val['c'] . PHP_EOL; }

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)
8.3.60.0040.01416.74
8.3.50.0140.00617.62
8.3.40.0110.00418.70
8.3.30.0120.00318.76
8.3.20.0040.00418.83
8.3.10.0040.01220.52
8.3.00.0040.00417.23
8.2.180.0040.01816.63
8.2.170.0110.00422.96
8.2.160.0070.00722.13
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00419.89
8.2.110.0050.00521.12
8.2.100.0060.00617.84
8.2.90.0040.00419.17
8.2.80.0000.00817.93
8.2.70.0000.00817.75
8.2.60.0060.00317.93
8.2.50.0080.00018.07
8.2.40.0050.00320.07
8.2.30.0040.00418.25
8.2.20.0000.00817.76
8.2.10.0000.00817.77
8.2.00.0000.00717.76
8.1.280.0070.00725.92
8.1.270.0000.00724.66
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0000.00820.88
8.1.230.0120.00020.84
8.1.220.0000.00817.79
8.1.210.0080.00018.89
8.1.200.0060.00317.47
8.1.190.0000.00817.55
8.1.180.0000.00818.10
8.1.170.0050.00218.74
8.1.160.0000.00818.94
8.1.150.0020.00518.65
8.1.140.0100.00017.39
8.1.130.0000.00717.78
8.1.120.0080.00017.41
8.1.110.0070.00017.50
8.1.100.0000.00717.51
8.1.90.0000.00717.37
8.1.80.0000.00717.50
8.1.70.0030.00317.46
8.1.60.0040.00417.57
8.1.50.0090.00017.45
8.1.40.0030.00617.44
8.1.30.0040.00417.63
8.1.20.0000.00817.56
8.1.10.0080.00017.57
8.1.00.0030.00617.53
8.0.300.0000.00720.02
8.0.290.0030.00516.75
8.0.280.0000.00718.38
8.0.270.0080.00017.36
8.0.260.0050.00216.75
8.0.250.0000.00716.97
8.0.240.0040.00416.99
8.0.230.0030.00317.02
8.0.220.0070.00016.91
8.0.210.0030.00416.89
8.0.200.0030.00316.91
8.0.190.0030.00516.94
8.0.180.0090.00016.91
8.0.170.0080.00016.83
8.0.160.0000.00816.88
8.0.150.0080.00016.82
8.0.140.0000.00816.88
8.0.130.0030.00313.41
8.0.120.0000.00716.86
8.0.110.0080.00016.78
8.0.100.0070.00016.83
8.0.90.0050.00316.79
8.0.80.0070.00716.98
8.0.70.0050.00316.77
8.0.60.0030.00616.76
8.0.50.0040.00416.95
8.0.30.0140.00517.23
8.0.20.0110.00717.07
8.0.10.0040.00416.94
8.0.00.0140.00516.60
7.4.330.0050.00014.77
7.4.320.0000.00616.54
7.4.300.0030.00316.46
7.4.290.0070.00016.54
7.4.280.0030.00716.61
7.4.270.0030.00316.48
7.4.260.0050.00013.30
7.4.250.0030.00716.51
7.4.240.0000.00716.68
7.4.230.0050.00216.52
7.4.220.0190.00016.56
7.4.210.0120.00616.50
7.4.200.0070.00016.44
7.4.190.0030.00316.43
7.4.160.0090.00916.42
7.4.150.0100.01417.07
7.4.140.0090.00817.23
7.4.130.0050.01616.65
7.4.120.0100.00716.47
7.4.110.0120.00616.57
7.4.100.0190.00316.63
7.4.90.0100.00716.46
7.4.80.0120.00618.80
7.4.70.0100.01016.53
7.4.60.0060.01616.57
7.4.50.0090.00023.17
7.4.40.0070.00321.69
7.4.30.0140.00716.46
7.4.00.0060.01215.17
7.3.330.0060.00013.09
7.3.320.0040.00413.05
7.3.310.0060.00316.42
7.3.300.0030.00316.33
7.3.290.0070.00816.27
7.3.280.0100.00716.27
7.3.270.0070.01017.07
7.3.260.0140.00518.24
7.3.250.0140.00716.42
7.3.240.0060.01016.61
7.3.230.0110.01116.39
7.3.210.0070.01116.63
7.3.200.0080.01019.39
7.3.190.0110.00716.64
7.3.180.0110.00516.57
7.3.170.0070.01416.30
7.3.160.0090.00616.36
7.3.120.0030.01415.13
7.2.330.0100.01016.46
7.2.320.0130.00316.84
7.2.310.0100.00716.70
7.2.300.0080.00816.64
7.2.290.0090.01316.39
7.2.60.0030.01216.75
7.2.00.0080.00419.22
7.1.200.0100.00315.67
7.1.100.0040.00718.02
7.1.70.0030.00517.17
7.1.60.0110.00019.40
7.1.50.0000.01216.98
7.1.00.0030.07722.57
7.0.200.0000.00716.52
7.0.140.0070.07021.95
7.0.120.0070.03021.96
7.0.60.0100.07719.78
7.0.50.0000.04317.81
7.0.40.0000.04720.06
7.0.30.0200.04720.28
7.0.20.0400.06320.30
7.0.10.0170.05020.13
7.0.00.0030.04320.28
5.6.280.0000.07721.11
5.6.210.0070.08020.77
5.6.200.0070.08018.13
5.6.190.0030.08020.49
5.6.180.0330.04720.60
5.6.170.0270.04020.47
5.6.160.0070.06320.48
5.6.150.0070.04718.22
5.6.140.0070.03718.12
5.6.130.0070.05318.14
5.6.120.0100.03721.00
5.6.110.0030.08320.90
5.6.100.0230.05721.01
5.6.90.0130.08021.00
5.6.80.0070.08320.41
5.5.350.0030.06020.41
5.5.340.0030.06317.89
5.5.330.0070.08320.21
5.5.320.1700.05720.50
5.5.310.0370.05320.29
5.5.300.0070.07718.01
5.5.290.0000.04317.92
5.5.280.0030.05320.85
5.5.270.0100.07720.86
5.5.260.0100.07720.68
5.5.250.0100.03320.70
5.5.240.0030.06020.05
5.4.450.0130.04719.48
5.4.440.0200.05719.24
5.4.430.0230.04019.40
5.4.420.0200.05319.23
5.4.410.0170.04019.29
5.4.400.0200.04319.14
5.4.390.0230.03019.11
5.4.380.0230.05718.81
5.4.370.0100.04318.88
5.4.360.0200.05019.13
5.4.350.0230.07019.18
5.4.340.0100.05018.92
5.4.320.0130.05318.89
5.4.310.0300.06319.26
5.4.300.0170.04019.21
5.4.290.0230.05018.93
5.4.280.0230.04319.05
5.4.270.0170.03719.21
5.4.260.0300.03719.08
5.4.250.0170.03719.23
5.4.240.0300.05719.08
5.4.230.0170.05019.08
5.4.220.0130.04019.24
5.4.210.0200.05019.10
5.4.200.0130.04018.82
5.4.190.0230.04319.05
5.4.180.0200.03318.88
5.4.170.0170.04318.90
5.4.160.0170.03718.77
5.4.150.0200.03719.05
5.4.140.0230.04316.19
5.4.130.0130.05016.54
5.4.120.0170.03316.34
5.4.110.0230.03716.43
5.4.100.0200.05316.22
5.4.90.0130.03716.19
5.4.80.0230.06316.41
5.4.70.0100.04716.42
5.4.60.0200.05716.36
5.4.50.0170.03716.16
5.4.40.0130.04316.36
5.4.30.0230.06316.36
5.4.20.0230.04016.36
5.4.10.0170.04716.36
5.4.00.0130.04715.78
5.3.290.0230.04714.52
5.3.280.0230.04014.64
5.3.270.0200.04714.56
5.3.260.0200.03314.46
5.3.250.0170.03714.52
5.3.240.0300.03714.62
5.3.230.0170.03714.50
5.3.220.0230.04014.52
5.3.210.0230.05314.42
5.3.200.0130.04014.43
5.3.190.0170.04014.55
5.3.180.0270.05314.51
5.3.170.0230.04314.57
5.3.160.0130.04014.40
5.3.150.0270.06714.41
5.3.140.0100.05014.46
5.3.130.0170.03714.54
5.3.120.0230.04314.64
5.3.110.0170.04014.50
5.3.100.0270.03014.05
5.3.90.0170.03713.97
5.3.80.0230.03013.85
5.3.70.0130.04014.03
5.3.60.0170.03713.96
5.3.50.0170.03713.80
5.3.40.0230.07013.90
5.3.30.0200.03313.68
5.3.20.0170.03313.48
5.3.10.0030.06013.70
5.3.00.0300.06313.58
5.2.170.0170.03011.16
5.2.160.0100.04311.23
5.2.150.0070.04310.98
5.2.140.0200.05011.19
5.2.130.0270.03711.06
5.2.120.0130.04010.98
5.2.110.0170.06010.98
5.2.100.0130.03010.95
5.2.90.0200.02711.12
5.2.80.0130.03010.98
5.2.70.0170.02711.17
5.2.60.0100.03711.20
5.2.50.0170.05311.02
5.2.40.0230.02010.84
5.2.30.0170.04711.13
5.2.20.0100.03711.00
5.2.10.0100.03310.80
5.2.00.0270.04310.62
5.1.60.0170.0209.92
5.1.50.0100.0309.97
5.1.40.0130.05310.05
5.1.30.0130.04010.41
5.1.20.0200.03710.40
5.1.10.0130.05710.05
5.1.00.0100.03310.23
5.0.50.0100.0208.47
5.0.40.0100.0478.33
5.0.30.0100.0478.20
5.0.20.0070.0408.13
5.0.10.0070.0308.39
5.0.00.0000.0738.30
4.4.90.0030.0207.88
4.4.80.0070.0307.88
4.4.70.0000.0237.88
4.4.60.0000.0207.88
4.4.50.0030.0137.88
4.4.40.0030.0307.88
4.4.30.0100.0177.88
4.4.20.0070.0207.88
4.4.10.0070.0377.88
4.4.00.0070.0477.88
4.3.110.0070.0137.88
4.3.100.0100.0237.88
4.3.90.0070.0407.88
4.3.80.0070.0307.88
4.3.70.0070.0207.88
4.3.60.0030.0207.88
4.3.50.0070.0207.88
4.3.40.0030.0277.88
4.3.30.0000.0337.88
4.3.20.0030.0177.88
4.3.10.0030.0177.88
4.3.00.0000.0207.88

preferences:
37.89 ms | 401 KiB | 5 Q