3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array[] = array('first'=>'jake','last'=>'quattrocchi'); $array[] = array('first'=>'david'); foreach($array as $key=>$value){ $value['first'] = 'adfgadgadfg'; unset($key); unset($value); } var_dump($array); echo $key; var_dump($value);

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)
8.3.60.0090.00616.75
8.3.50.0070.01221.27
8.3.40.0070.00718.78
8.3.30.0070.00718.81
8.3.20.0000.00720.34
8.3.10.0070.00021.73
8.3.00.0080.00017.93
8.2.180.0060.00916.63
8.2.170.0150.00022.96
8.2.160.0100.00720.57
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0080.00019.49
8.2.110.0060.00321.95
8.2.100.0060.00619.82
8.2.90.0040.00419.29
8.2.80.0000.00817.97
8.2.70.0030.00617.75
8.2.60.0000.00818.05
8.2.50.0060.00318.07
8.2.40.0000.00818.47
8.2.30.0000.01118.29
8.2.20.0050.00317.73
8.2.10.0000.00918.12
8.2.00.0050.00317.87
8.1.280.0110.00425.92
8.1.270.0050.00323.92
8.1.260.0090.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00022.02
8.1.230.0090.00319.14
8.1.220.0040.00417.79
8.1.210.0040.00418.77
8.1.200.0030.00617.36
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0090.00018.70
8.1.160.0000.00721.91
8.1.150.0030.00618.89
8.1.140.0040.00417.36
8.1.130.0040.00417.75
8.1.120.0030.00317.39
8.1.110.0030.00317.45
8.1.100.0000.00717.36
8.1.90.0030.00617.36
8.1.80.0000.00717.43
8.1.70.0000.00717.40
8.1.60.0030.00517.66
8.1.50.0030.00517.43
8.1.40.0000.00817.51
8.1.30.0040.00417.49
8.1.20.0070.00017.64
8.1.10.0040.00417.46
8.1.00.0000.00717.39
8.0.300.0000.00818.77
8.0.290.0000.00716.75
8.0.280.0050.00318.29
8.0.270.0070.00017.17
8.0.260.0030.00317.19
8.0.250.0030.00316.92
8.0.240.0080.00016.97
8.0.230.0000.00717.01
8.0.220.0000.00716.86
8.0.210.0040.00416.83
8.0.200.0060.00017.05
8.0.190.0000.00717.06
8.0.180.0040.00416.98
8.0.170.0000.00716.95
8.0.160.0000.00716.81
8.0.150.0040.00417.00
8.0.140.0040.00416.84
8.0.130.0050.00013.39
8.0.120.0050.00316.92
8.0.110.0040.00416.84
8.0.100.0050.00216.94
8.0.90.0000.00717.02
8.0.80.0090.00616.98
8.0.70.0030.00516.95
8.0.60.0040.00416.82
8.0.50.0080.00016.89
8.0.30.0100.01217.19
8.0.20.0090.00917.40
8.0.10.0000.00717.06
8.0.00.0060.01216.92
7.4.330.0000.00515.00
7.4.320.0060.00016.63
7.4.300.0060.00016.41
7.4.290.0040.00416.43
7.4.280.0040.00416.41
7.4.270.0000.00716.47
7.4.260.0000.00716.40
7.4.250.0050.00216.36
7.4.240.0020.00616.51
7.4.230.0030.00316.57
7.4.220.0110.00616.53
7.4.210.0060.00916.46
7.4.200.0000.00716.60
7.4.160.0070.00716.48
7.4.150.0110.00817.40
7.4.140.0070.01117.86
7.4.130.0080.01116.59
7.4.120.0050.01216.41
7.4.110.0120.01216.55
7.4.100.0070.01416.52
7.4.90.0120.00616.54
7.4.80.0130.01019.39
7.4.70.0060.01116.53
7.4.60.0120.00616.59
7.4.50.0000.00816.39
7.4.40.0060.01016.64
7.4.30.0060.00916.39
7.4.00.0110.00414.94
7.3.330.0040.00413.07
7.3.320.0020.00213.11
7.3.310.0070.00016.45
7.3.300.0070.00016.41
7.3.290.0060.01316.42
7.3.280.0080.00916.39
7.3.270.0060.01317.40
7.3.260.0180.00316.44
7.3.250.0120.01116.56
7.3.240.0180.00316.47
7.3.230.0090.01116.39
7.3.210.0150.00916.49
7.3.200.0060.01619.39
7.3.190.0100.00716.58
7.3.180.0100.00616.59
7.3.170.0060.01016.46
7.3.160.0160.00016.42
7.3.120.0090.00614.96
7.2.330.0060.01216.70
7.2.320.0160.00616.59
7.2.310.0120.00616.78
7.2.300.0090.00916.56
7.2.290.0080.00816.29
7.2.00.0030.01319.57
7.1.100.0000.00917.81
7.1.70.0060.00316.96
7.1.60.0070.01719.25
7.1.50.0040.01516.92
7.1.00.0000.07722.31
7.0.200.0030.00516.64
7.0.140.0000.07021.92
7.0.110.0100.07321.67
7.0.100.0100.07321.77
7.0.90.0030.08021.75
7.0.80.0030.03721.76
7.0.70.0070.03321.74
7.0.60.0070.07721.84
7.0.50.0070.03321.65
7.0.40.0030.03719.75
7.0.30.0030.06719.72
7.0.20.0000.07019.74
7.0.10.0070.07719.72
7.0.00.0030.08019.65
5.6.280.0000.07721.09
5.6.260.0030.08020.57
5.6.250.0070.07720.59
5.6.240.0030.04720.70
5.6.230.0000.07020.66
5.6.220.0000.08320.64
5.6.210.0030.03320.62
5.6.200.0100.03320.61
5.6.190.0100.07320.69
5.6.180.0030.03720.86
5.6.170.0070.07320.71
5.6.160.0070.08020.60
5.6.150.0000.08720.58
5.6.140.0030.07020.68
5.6.130.0070.08020.55
5.6.120.0000.08020.67
5.6.110.0030.04720.61
5.6.100.0130.07320.66
5.6.90.0030.05320.62
5.6.80.0030.05320.24
5.6.70.0030.08020.03
5.6.60.0000.05719.94
5.6.50.0000.08019.99
5.6.40.0030.07020.04
5.6.30.0000.03719.82
5.6.20.0070.05020.06
5.6.10.0000.08019.97
5.6.00.0000.08319.92
5.5.380.0030.06317.62
5.5.370.0000.06017.55
5.5.360.0000.07317.52
5.5.350.0030.07317.48
5.5.340.0030.03717.79
5.5.330.0000.06317.84
5.5.320.0070.07018.16
5.5.310.0000.07718.10
5.5.300.0030.07718.10
5.5.290.0100.07317.98
5.5.280.0000.05318.13
5.5.270.0100.07317.84
5.5.260.0070.07318.11
5.5.250.0000.06317.70
5.5.240.0030.07717.41
5.5.230.0030.07717.63
5.5.220.0070.07017.27
5.5.210.0000.04317.22
5.5.200.0000.07717.23
5.5.190.0000.06317.47
5.5.180.0070.03017.47
5.5.160.0000.07317.51
5.5.150.0100.06717.47
5.5.140.0030.07317.12
5.5.130.0030.08017.23
5.5.120.0030.07717.37
5.5.110.0070.07317.50
5.5.100.0100.07717.12
5.5.90.0070.07317.23
5.5.80.0030.07317.11
5.5.70.0070.07017.11
5.5.60.0100.06317.34
5.5.50.0070.07317.37
5.5.40.0130.06717.13
5.5.30.0000.08317.34
5.5.20.0070.07317.12
5.5.10.0030.07717.22
5.5.00.0030.08017.48
5.4.450.0130.06719.35
5.4.440.0030.05019.59
5.4.430.0030.07719.25
5.4.420.0070.07719.42
5.4.410.0070.07319.45
5.4.400.0070.04019.11
5.4.390.0000.07719.12
5.4.380.0100.07719.27
5.4.370.0030.06718.93
5.4.360.0030.07319.03
5.4.350.0030.03719.27
5.4.340.0000.06719.27
5.4.320.0030.07319.17
5.4.310.0030.07719.16
5.4.300.0070.06718.94
5.4.290.0000.07718.93
5.4.280.0100.07019.19
5.4.270.0070.05319.00
5.4.260.0070.06719.11
5.4.250.0100.07018.97
5.4.240.0100.07019.07
5.4.230.0030.04719.07
5.4.220.0070.07319.00
5.4.210.0070.06718.94
5.4.200.0070.06718.89
5.4.190.0130.06019.02
5.4.180.0070.07318.93
5.4.170.0030.07318.92
5.4.160.0070.04019.10
5.4.150.0030.06318.92
5.4.140.0030.04016.56
5.4.130.0000.04316.44
5.4.120.0070.03716.22
5.4.110.0070.03016.21
5.4.100.0000.07016.51
5.4.90.0000.03716.40
5.4.80.0000.07016.23
5.4.70.0000.07016.34
5.4.60.0000.05016.11
5.4.50.0030.06016.22
5.4.40.0070.06716.31
5.4.30.0030.07716.37
5.4.20.0030.04716.46
5.4.10.0030.05316.49
5.4.00.0030.04315.70
5.3.290.0070.07314.73
5.3.280.0070.07014.66
5.3.270.0000.08014.51
5.3.260.0030.07714.70
5.3.250.0030.07314.63
5.3.240.0000.07714.52
5.3.230.0070.06714.46
5.3.220.0000.06314.64
5.3.210.0030.05714.41
5.3.200.0030.04014.59
5.3.190.0000.06314.63
5.3.180.0030.04014.57
5.3.170.0000.03314.57
5.3.160.0000.07314.56
5.3.150.0030.03014.50
5.3.140.0030.07314.63
5.3.130.0070.07014.61
5.3.120.0030.06714.43
5.3.110.0000.06714.48
5.3.100.0030.04713.87
5.3.90.0000.07314.05
5.3.80.0000.08013.95
5.3.70.0000.07014.09
5.3.60.0030.07313.89
5.3.50.0030.06313.80
5.3.40.0000.06713.73
5.3.30.0000.05314.00
5.3.20.0030.03313.53
5.3.10.0030.03713.60
5.3.00.0030.03313.42
5.2.170.0070.04711.14
5.2.160.0000.06011.07
5.2.150.0000.06011.09
5.2.140.0030.02711.07
5.2.130.0000.03011.16
5.2.120.0070.02711.00
5.2.110.0030.02711.02
5.2.100.0000.03311.10
5.2.90.0000.03011.04
5.2.80.0030.03311.03
5.2.70.0000.03311.11
5.2.60.0000.03310.97
5.2.50.0000.04011.09
5.2.40.0030.02710.93
5.2.30.0030.02710.97
5.2.20.0000.03010.98
5.2.10.0030.02310.86
5.2.00.0000.06310.85
5.1.60.0000.02710.29
5.1.50.0070.01710.29
5.1.40.0000.02310.29
5.1.30.0000.02710.29
5.1.20.0130.01310.30
5.1.10.0000.03710.29
5.1.00.0030.04710.29
5.0.50.0030.04310.29
5.0.40.0030.03710.29
5.0.30.0000.05310.29
5.0.20.0000.02310.29
5.0.10.0000.04310.29
5.0.00.0000.06310.29
4.4.90.0000.01310.29
4.4.80.0000.01710.29
4.4.70.0000.01310.29
4.4.60.0000.01310.29
4.4.50.0000.01710.29
4.4.40.0000.02310.29
4.4.30.0000.01710.29
4.4.20.0000.01310.29
4.4.10.0070.03010.29
4.4.00.0000.05310.29
4.3.110.0030.03010.29
4.3.100.0000.03310.29
4.3.90.0000.03310.29
4.3.80.0030.04010.29
4.3.70.0030.02710.29
4.3.60.0000.01310.29
4.3.50.0000.02010.29
4.3.40.0000.04310.29
4.3.30.0030.01710.29
4.3.20.0000.01710.29
4.3.10.0030.01310.29
4.3.00.0000.02010.29

preferences:
43.92 ms | 401 KiB | 5 Q