3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = array( 'a' => array('1' => 2, '2' => 3), 'b' => array('4' => 5, '5' => 6)); print_r($x); foreach ($x as $k => $v){ if (isset($v['1'])) {$x[$k]['1'] = 10; } } print_r($x);

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)
8.3.60.0090.00618.39
8.3.50.0060.01322.01
8.3.40.0090.00618.69
8.3.30.0070.01419.11
8.3.20.0110.00720.34
8.3.10.0040.00423.61
8.3.00.0090.00018.73
8.2.180.0040.01118.16
8.2.170.0110.00722.96
8.2.160.0040.01122.25
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0030.00519.77
8.2.110.0190.00020.35
8.2.100.0040.00718.28
8.2.90.0000.01117.75
8.2.80.0000.00918.05
8.2.70.0000.00817.91
8.2.60.0050.00518.22
8.2.50.0030.00518.10
8.2.40.0070.00019.65
8.2.30.0040.00419.25
8.2.20.0000.00817.63
8.2.10.0050.00218.03
8.2.00.0000.00717.63
8.1.280.0130.00725.92
8.1.270.0070.00319.05
8.1.260.0090.00626.35
8.1.250.0090.00928.09
8.1.240.0060.00323.99
8.1.230.0000.01119.21
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0040.00817.47
8.1.190.0040.00417.38
8.1.180.0000.00718.10
8.1.170.0060.00318.49
8.1.160.0050.00218.90
8.1.150.0040.00418.77
8.1.140.0050.00217.50
8.1.130.0000.00717.72
8.1.120.0070.00017.37
8.1.110.0000.00917.41
8.1.100.0040.00417.41
8.1.90.0030.00517.48
8.1.80.0040.00417.39
8.1.70.0000.00817.43
8.1.60.0030.00617.62
8.1.50.0040.00417.43
8.1.40.0000.00917.40
8.1.30.0030.00617.48
8.1.20.0000.00817.59
8.1.10.0000.00717.46
8.1.00.0000.00717.31
8.0.300.0030.00519.71
8.0.290.0000.00816.63
8.0.280.0000.00718.49
8.0.270.0030.00317.27
8.0.260.0070.00017.20
8.0.250.0070.00016.95
8.0.240.0040.00416.97
8.0.230.0070.00017.02
8.0.220.0050.00216.93
8.0.210.0000.00816.78
8.0.200.0030.00316.97
8.0.190.0070.00016.97
8.0.180.0000.00716.80
8.0.170.0040.00416.80
8.0.160.0000.00816.86
8.0.150.0040.00416.83
8.0.140.0050.00216.75
8.0.130.0000.00613.35
8.0.120.0040.00416.90
8.0.110.0080.00016.85
8.0.100.0030.00516.67
8.0.90.0030.00516.92
8.0.80.0180.00516.83
8.0.70.0040.00416.87
8.0.60.0000.00816.73
8.0.50.0040.00416.71
8.0.30.0130.00917.09
8.0.20.0170.00417.40
8.0.10.0040.00416.85
8.0.00.0100.00816.70
7.4.330.0000.00515.16
7.4.320.0000.00616.53
7.4.300.0030.00316.64
7.4.290.0030.00316.50
7.4.280.0030.00616.50
7.4.270.0030.00316.52
7.4.260.0070.00016.41
7.4.250.0050.00316.44
7.4.240.0040.00416.52
7.4.230.0030.00316.48
7.4.220.0090.00916.66
7.4.210.0040.01816.70
7.4.200.0030.00316.70
7.4.160.0130.00316.29
7.4.150.0130.00617.40
7.4.140.0110.00617.86
7.4.130.0100.00816.58
7.4.120.0080.00916.52
7.4.110.0090.01216.55
7.4.100.0120.00616.48
7.4.90.0200.01216.60
7.4.80.0190.00319.39
7.4.70.0070.01016.51
7.4.60.0070.01116.61
7.4.50.0050.00016.54
7.4.40.0040.01316.67
7.4.30.0120.00616.55
7.4.00.0130.00314.68
7.3.330.0030.00313.27
7.3.320.0050.00013.18
7.3.310.0030.00316.34
7.3.300.0030.00316.32
7.3.290.0060.00816.34
7.3.280.0100.00516.39
7.3.270.0090.01517.40
7.3.260.0150.00916.67
7.3.250.0130.00516.35
7.3.240.0130.01016.36
7.3.230.0070.01016.39
7.3.210.0140.00716.62
7.3.200.0180.00019.39
7.3.190.0100.01016.66
7.3.180.0130.00316.63
7.3.170.0100.00716.30
7.3.160.0180.00016.36
7.2.330.0090.00916.58
7.2.320.0100.00716.54
7.2.310.0040.01316.30
7.2.300.0060.01216.52
7.2.290.0060.01216.71
7.2.00.0000.01219.39
7.1.100.0040.00718.01
7.1.70.0030.00717.22
7.1.60.0140.00719.22
7.1.50.0030.01316.98
7.1.00.0070.07322.35
7.0.200.0080.00016.52
7.0.140.0030.06322.22
7.0.60.0270.07321.74
7.0.50.0170.07017.97
7.0.40.0100.08019.98
7.0.30.0370.05720.20
7.0.20.0370.07320.30
7.0.10.0100.05020.08
7.0.00.0070.07720.09
5.6.280.0200.05721.06
5.6.210.0100.07320.71
5.6.200.0100.04018.13
5.6.190.0130.04320.48
5.6.180.0170.04320.47
5.6.170.0230.04020.71
5.6.160.0070.08720.61
5.6.150.0130.06318.15
5.6.140.0130.03018.24
5.6.130.0100.05718.27
5.6.120.0030.04721.12
5.6.110.0100.08321.02
5.6.100.0130.06320.96
5.6.90.0070.07020.96
5.6.80.0100.07720.37
5.5.350.0370.06320.42
5.5.340.0070.07718.02
5.5.330.0130.03320.37
5.5.320.0170.04320.32
5.5.310.0300.06320.29
5.5.300.0000.08317.92
5.5.290.0030.06017.91
5.5.280.0070.05020.87
5.5.270.0100.07320.95
5.5.260.0070.05720.77
5.5.250.0100.07320.79
5.5.240.0330.07020.18
5.4.450.2070.03319.31
5.4.440.0070.03719.26
5.4.430.0970.03719.45
5.4.420.2700.04019.36
5.4.410.3770.04019.42
5.4.400.3570.03319.26
5.4.390.3870.04319.15
5.4.380.4000.04719.15
5.4.370.3170.03019.16
5.4.360.3800.05719.27
5.4.350.3700.03719.04
5.4.340.4000.03318.97
5.4.320.1600.04719.22
5.4.310.4070.03719.06
5.4.300.4300.04018.98
5.4.290.4400.03718.94
5.4.280.4670.04018.98
5.4.270.4600.04319.14
5.4.260.4270.03319.13
5.4.250.3800.04319.22
5.4.240.4030.03719.26
5.4.230.3730.03718.94
5.4.220.4130.04719.21
5.4.210.4170.03019.07
5.4.200.4030.04019.14
5.4.190.4100.03719.16
5.4.180.4430.04319.12
5.4.170.4130.03719.00
5.4.160.4070.03019.17
5.4.150.3530.03718.93
5.4.140.4330.03316.41
5.4.130.4600.04016.35
5.4.120.4770.03016.29
5.4.110.3200.03716.41
5.4.100.4330.03716.55
5.4.90.3570.03716.51
5.4.80.3170.03316.38
5.4.70.3970.03016.46
5.4.60.4200.03716.45
5.4.50.2500.05016.29
5.4.40.3830.03316.47
5.4.30.3830.03716.50
5.4.20.4000.03316.53
5.4.10.3930.03016.53
5.4.00.3700.03715.79
5.3.290.4670.03714.57
5.3.280.3530.03314.61
5.3.270.4130.04314.74
5.3.260.3470.03014.67
5.3.250.4130.03314.66
5.3.240.4430.04014.48
5.3.230.3970.04014.60
5.3.220.4130.03014.48
5.3.210.4400.04714.55
5.3.200.3930.03714.61
5.3.190.4230.04314.56
5.3.180.3970.03314.48
5.3.170.3900.03714.63
5.3.160.4800.03314.57
5.3.150.4130.04014.55
5.3.140.4000.04314.56
5.3.130.3900.03714.46
5.3.120.3800.04014.59
5.3.110.3800.04714.61
5.3.100.4030.04014.04
5.3.90.4070.03714.02
5.3.80.3530.03314.09
5.3.70.4230.04014.01
5.3.60.4430.03713.89
5.3.50.4500.04013.98
5.3.40.4500.03313.98
5.3.30.4630.04013.87
5.3.20.1070.03713.73
5.3.10.3630.03313.54
5.3.00.3130.02713.63
5.2.170.3700.03711.03
5.2.160.3600.03311.20
5.2.150.3500.03311.17
5.2.140.3100.03011.13
5.2.130.1770.02711.15
5.2.120.2770.03311.07
5.2.110.2430.02711.24
5.2.100.2500.03011.16
5.2.90.3030.02711.07
5.2.80.2170.03010.98
5.2.70.2130.03011.16
5.2.60.1970.03011.20
5.2.50.3030.02010.99
5.2.40.1830.02311.04
5.2.30.2400.03011.02
5.2.20.2330.02710.84
5.2.10.1870.02710.81
5.2.00.1730.02710.70
5.1.60.2430.0239.99
5.1.50.2130.01710.05
5.1.40.2630.0209.94
5.1.30.2800.02710.34
5.1.20.2630.02310.37
5.1.10.2130.03310.13
5.1.00.2770.02010.04
5.0.50.1870.0208.62
5.0.40.1830.0208.44
5.0.30.1530.0308.18
5.0.20.1900.0178.17
5.0.10.1830.0178.16
5.0.00.1430.0308.15
4.4.90.0630.0135.88
4.4.80.0700.0135.92
4.4.70.0770.0135.87
4.4.60.0700.0135.78
4.4.50.0770.0205.80
4.4.40.0530.0205.77
4.4.30.0730.0105.79
4.4.20.1500.0175.84
4.4.10.1630.0205.82
4.4.00.1930.0275.79
4.3.110.1570.0175.74
4.3.100.1470.0175.74
4.3.90.1470.0175.67
4.3.80.1270.0205.70
4.3.70.1900.0135.83
4.3.60.1670.0105.75
4.3.50.1500.0135.79
4.3.40.1370.0235.64
4.3.30.0870.0174.54
4.3.20.0930.0174.54
4.3.10.1000.0234.54
4.3.00.0970.0234.54

preferences:
56.9 ms | 401 KiB | 5 Q