3v4l.org

run code in 300+ PHP versions simultaneously
<?php header('Content-type: text/plain'); $a = json_decode("[{\"id\":1, \"foo\":{\"123\": \"bar\"}}]"); $b = unserialize(serialize($a)); foreach($a[0]->foo as $name => $value) { var_dump($name, $value); $b[0]->foo->$name = "baz"; var_dump($b); }

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)
8.3.70.0110.01116.63
8.3.60.0160.00316.46
8.3.50.0070.01417.54
8.3.40.0040.01118.76
8.3.30.0100.00618.67
8.3.20.0080.00818.61
8.3.10.0030.00518.75
8.3.00.0040.01519.25
8.2.180.0130.00716.63
8.2.170.0100.01022.96
8.2.160.0120.00318.87
8.2.150.0090.00024.18
8.2.140.0030.00624.66
8.2.130.0070.00726.16
8.2.120.0060.00317.93
8.2.110.0060.00319.33
8.2.100.0050.00517.91
8.2.90.0030.00519.26
8.2.80.0000.00817.97
8.2.70.0030.00517.59
8.2.60.0040.00418.05
8.2.50.0050.00318.05
8.2.40.0000.00819.48
8.2.30.0050.00517.83
8.2.20.0030.00617.85
8.2.10.0000.00817.62
8.2.00.0040.00417.65
8.1.280.0070.00725.92
8.1.270.0070.00023.99
8.1.260.0070.01026.35
8.1.250.0100.00728.09
8.1.240.0060.00322.76
8.1.230.0040.00817.83
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0000.00817.35
8.1.180.0050.00318.10
8.1.170.0060.00317.62
8.1.160.0020.00519.02
8.1.150.0000.00718.55
8.1.140.0040.00417.35
8.1.130.0000.00817.44
8.1.120.0040.00417.43
8.1.110.0000.00817.33
8.1.100.0050.00217.34
8.1.90.0030.00317.36
8.1.80.0020.00517.44
8.1.70.0030.00317.38
8.1.60.0040.00417.55
8.1.50.0000.00717.39
8.1.40.0000.00717.50
8.1.30.0050.00517.57
8.1.20.0030.00617.54
8.1.10.0030.00617.61
8.1.00.0000.00817.38
8.0.300.0030.00618.84
8.0.290.0060.00316.75
8.0.280.0000.00618.63
8.0.270.0070.00017.26
8.0.260.0070.00316.88
8.0.250.0040.00316.88
8.0.240.0080.00017.04
8.0.230.0080.00016.91
8.0.220.0030.00616.95
8.0.210.0070.00016.85
8.0.200.0040.00417.00
8.0.190.0000.00716.97
8.0.180.0000.00717.03
8.0.170.0000.00816.94
8.0.160.0000.00717.04
8.0.150.0060.00316.84
8.0.140.0000.01016.93
8.0.130.0030.00313.36
8.0.120.0030.00616.88
8.0.110.0040.00416.94
8.0.100.0040.00416.94
8.0.90.0030.00316.96
8.0.80.0090.00916.91
8.0.70.0000.00717.06
8.0.60.0030.00517.05
8.0.50.0000.00816.98
8.0.30.0170.00417.28
8.0.20.0130.00617.21
8.0.10.0000.00716.94
8.0.00.0090.01116.78
7.4.330.0030.00312.97
7.4.320.0030.00316.60
7.4.300.0060.00016.49
7.4.290.0030.00316.45
7.4.280.0000.00816.48
7.4.270.0070.00016.48
7.4.260.0060.00013.28
7.4.250.0100.00016.53
7.4.240.0070.00016.50
7.4.230.0040.00416.53
7.4.220.0150.00716.47
7.4.210.0030.01216.66
7.4.200.0000.00716.57
7.4.190.0000.00816.71
7.4.160.0160.00016.50
7.4.150.0070.01116.58
7.4.140.0140.01117.86
7.4.130.0100.01716.59
7.4.120.0120.00616.57
7.4.110.0120.00616.68
7.4.100.0140.00316.71
7.4.90.0170.00316.40
7.4.80.0070.01119.39
7.4.70.0060.00916.64
7.4.60.0110.00616.57
7.4.50.0030.00616.59
7.4.40.0030.00916.49
7.4.30.0110.00616.59
7.4.00.0030.01315.00
7.3.330.0050.00013.08
7.3.320.0060.00013.16
7.3.310.0040.00316.18
7.3.300.0070.00016.32
7.3.290.0070.00716.32
7.3.280.0070.00716.32
7.3.270.0140.01016.42
7.3.260.0090.00916.59
7.3.240.0110.00816.36
7.3.230.0080.01216.34
7.3.210.0130.00716.49
7.3.200.0080.00816.48
7.3.190.0130.00316.29
7.3.180.0070.01016.35
7.3.170.0170.00416.43
7.3.160.0140.00716.39
7.3.120.0040.00414.94
7.3.10.0060.00416.73
7.3.00.0060.00616.50
7.2.330.0090.00916.65
7.2.320.0090.01416.89
7.2.310.0130.01016.71
7.2.300.0100.00716.80
7.2.290.0090.00916.64
7.2.130.0090.00416.91
7.2.120.0010.01116.74
7.2.110.0030.01316.92
7.2.100.0060.00916.83
7.2.90.0080.00616.96
7.2.80.0070.00916.76
7.2.70.0100.00516.98
7.2.60.0070.00516.92
7.2.50.0050.00816.88
7.2.40.0060.00816.79
7.2.30.0080.00616.97
7.2.20.0070.00817.06
7.2.10.0090.00616.71
7.2.00.0050.00917.61
7.1.250.0070.00515.73
7.1.200.0090.00315.78
7.1.100.0030.01218.27
7.1.70.0000.00917.11
7.1.60.0100.01319.21
7.1.50.0060.01916.91
7.1.00.0000.03722.39
7.0.200.0070.00716.76
7.0.140.0070.07322.08
7.0.120.0070.07021.95
7.0.60.0000.04319.96
7.0.50.0030.04017.79
7.0.40.0000.06020.20
7.0.30.0300.06720.21
7.0.20.0200.07320.30
7.0.10.0330.07020.13
7.0.00.0030.04719.99
5.6.280.0070.07020.98
5.6.210.0000.08720.50
5.6.200.0270.06718.17
5.6.190.0030.04320.61
5.6.180.0300.04720.55
5.6.170.0330.03320.33
5.6.160.0030.08720.40
5.6.150.0030.08018.19
5.6.140.0030.05018.11
5.6.130.0030.04318.22
5.6.120.0030.05321.01
5.6.110.0070.08021.14
5.6.100.0100.04021.01
5.6.90.0000.05020.88
5.6.80.0130.06720.38
5.5.350.0100.08720.44
5.5.340.0100.08017.92
5.5.330.0030.04020.21
5.5.320.0130.07720.36
5.5.310.0130.04320.24
5.5.300.0070.04717.92
5.5.290.0130.07017.91
5.5.280.0100.07020.77
5.5.270.0070.06320.79
5.5.260.0100.06320.76
5.5.250.0070.08720.61
5.5.240.0200.04720.26
5.4.450.0070.08019.48
5.4.440.0000.05019.40
5.4.430.0100.07719.40
5.4.420.0000.08319.13
5.4.410.0070.08019.34
5.4.400.0070.04019.14
5.4.390.0070.07719.18
5.4.380.0030.06719.08
5.4.370.0070.05319.16
5.4.360.0070.08018.80
5.4.350.0200.06718.91
5.4.340.0030.08019.11
5.4.320.0030.07018.79
5.4.310.0070.07719.09
5.4.300.0070.07718.78
5.4.290.0100.07019.00
5.4.280.0070.04019.18
5.4.270.0100.05719.17
5.4.260.0070.07318.79
5.4.250.0200.05018.78
5.4.240.0100.07719.07
5.4.230.0130.06019.17
5.4.220.0070.05019.13
5.4.210.0070.07318.91
5.4.200.0030.08319.17
5.4.190.0100.04719.17
5.4.180.0100.06319.16
5.4.170.0030.04319.16
5.4.160.0100.07719.12
5.4.150.0000.07719.15
5.4.140.0100.06016.27
5.4.130.0000.07716.21
5.4.120.0030.05016.20
5.4.110.0130.05316.63
5.4.100.0070.04716.27
5.4.90.0130.06016.15
5.4.80.0100.04716.38
5.4.70.0070.07016.39
5.4.60.0030.03716.22
5.4.50.0130.06716.28
5.4.40.0200.05316.21
5.4.30.0030.03716.28
5.4.20.0100.05316.36
5.4.10.0130.05016.22
5.4.00.0030.04715.79
5.3.290.0070.07714.61
5.3.280.0130.06314.39
5.3.270.0130.04314.51
5.3.260.0070.07714.54
5.3.250.0230.05314.59
5.3.240.0030.05314.55
5.3.230.0070.07714.57
5.3.220.0030.04714.39
5.3.210.0070.05314.66
5.3.200.0070.03714.52
5.3.190.0070.06014.41
5.3.180.0030.03714.50
5.3.170.0000.04714.49
5.3.160.0070.04014.66
5.3.150.0130.07014.50
5.3.140.0070.04314.35
5.3.130.0130.07014.57
5.3.120.0100.07314.52
5.3.110.0030.07714.57
5.3.100.0070.06013.98
5.3.90.0070.03313.90
5.3.80.0100.07014.00
5.3.70.0100.05013.99
5.3.60.0030.04714.03
5.3.50.0100.07314.04
5.3.40.0030.05713.89
5.3.30.0100.05713.71
5.3.20.0070.07313.53
5.3.10.0000.07013.63
5.3.00.0030.06313.43
5.2.170.0100.07010.97
5.2.160.0100.05711.00
5.2.150.0000.04311.14
5.2.140.0000.03311.05
5.2.130.0100.04311.26
5.2.120.0000.06710.99
5.2.110.0070.06311.07
5.2.100.0070.04711.05
5.2.90.0000.03311.04
5.2.80.0000.04711.03
5.2.70.0070.02710.92
5.2.60.0070.06010.99
5.2.50.0000.07010.84
5.2.40.0030.05310.88
5.2.30.0100.04711.13
5.2.20.0030.06310.78
5.2.10.0000.03710.85
5.2.00.0000.04010.59
5.1.60.0030.0439.89
5.1.50.0000.05710.14
5.1.40.0070.0239.88
5.1.30.0100.04310.38
5.1.20.0000.05310.38
5.1.10.0030.05710.06
5.1.00.0030.03710.07
5.0.50.0070.0408.54
5.0.40.0000.0338.40
5.0.30.0070.0438.21
5.0.20.0030.0308.21
5.0.10.0000.0438.07
5.0.00.0100.0408.21
4.4.90.0030.0177.75
4.4.80.0070.0377.75
4.4.70.0070.0207.75
4.4.60.0000.0307.75
4.4.50.0030.0307.75
4.4.40.0070.0277.75
4.4.30.0070.0137.75
4.4.20.0000.0377.75
4.4.10.0000.0237.75
4.4.00.0000.0537.75
4.3.110.0030.0177.75
4.3.100.0030.0277.75
4.3.90.0100.0207.75
4.3.80.0030.0537.79
4.3.70.0030.0307.79
4.3.60.0100.0177.79
4.3.50.0070.0277.79
4.3.40.0000.0577.80
4.3.30.0030.0177.81
4.3.20.0030.0307.81
4.3.10.0030.0177.81
4.3.00.0030.0137.81

preferences:
63.61 ms | 401 KiB | 5 Q