3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $id; public function __construct() { } public function __toString() { return $id . ""; } } $a = new Foo; // $a is a pointer pointing to Foo object 0 $b = $a; // $b is a pointer pointing to Foo object 0, however, $b is a copy of $a unlink($a); 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)
8.3.60.0070.01418.55
8.3.50.0110.00822.05
8.3.40.0060.00918.83
8.3.30.0040.01119.05
8.3.20.0080.00020.52
8.3.10.0040.00421.90
8.3.00.0000.00817.90
8.2.180.0170.00317.00
8.2.170.0070.01022.96
8.2.160.0070.00722.26
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0160.00326.16
8.2.120.0050.00321.12
8.2.110.0030.00622.25
8.2.100.0040.00718.03
8.2.90.0040.00419.08
8.2.80.0000.00817.97
8.2.70.0090.00017.63
8.2.60.0080.00018.04
8.2.50.0070.00418.07
8.2.40.0030.00519.88
8.2.30.0070.00318.05
8.2.20.0030.00717.76
8.2.10.0050.00218.05
8.2.00.0040.00417.69
8.1.280.0120.00925.92
8.1.270.0060.00322.01
8.1.260.0040.00426.35
8.1.250.0110.00428.09
8.1.240.0000.00924.02
8.1.230.0040.00719.08
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00617.12
8.1.190.0090.00017.22
8.1.180.0030.00618.10
8.1.170.0030.00618.59
8.1.160.0000.00721.94
8.1.150.0000.00718.93
8.1.140.0000.00817.46
8.1.130.0030.00317.75
8.1.120.0000.00817.47
8.1.110.0000.00817.45
8.1.100.0050.00317.49
8.1.90.0030.00317.46
8.1.80.0080.00017.35
8.1.70.0000.00617.36
8.1.60.0040.00417.58
8.1.50.0040.00417.51
8.1.40.0030.00617.50
8.1.30.0060.00317.66
8.1.20.0030.00517.49
8.1.10.0000.00717.57
8.1.00.0000.00717.40
8.0.300.0040.00418.77
8.0.290.0030.00616.63
8.0.280.0040.00418.52
8.0.270.0030.00317.18
8.0.260.0000.00617.22
8.0.250.0000.00717.04
8.0.240.0030.00317.07
8.0.230.0030.00316.93
8.0.220.0040.00416.88
8.0.210.0000.00816.87
8.0.200.0030.00316.94
8.0.190.0000.00716.93
8.0.180.0040.00416.95
8.0.170.0050.00217.03
8.0.160.0070.00016.86
8.0.150.0040.00416.99
8.0.140.0050.00316.98
8.0.130.0000.00513.35
8.0.120.0050.00316.80
8.0.110.0030.00517.01
8.0.100.0000.00716.91
8.0.90.0030.00417.07
8.0.80.0040.01617.01
8.0.70.0040.00416.96
8.0.60.0000.00816.92
8.0.50.0050.00316.99
8.0.30.0120.00817.06
8.0.20.0080.01217.40
8.0.10.0000.00716.91
8.0.00.0080.00916.66
7.4.330.0050.00015.09
7.4.320.0070.00016.36
7.4.300.0030.00316.52
7.4.290.0040.00416.55
7.4.280.0000.00716.53
7.4.270.0030.00316.57
7.4.260.0040.00416.63
7.4.250.0070.00016.53
7.4.240.0040.00416.60
7.4.230.0040.00416.63
7.4.220.0150.00316.63
7.4.210.0030.01216.63
7.4.200.0050.00316.71
7.4.160.0060.01516.40
7.4.150.0130.00617.40
7.4.140.0120.00517.86
7.4.130.0080.00916.50
7.4.120.0100.00816.63
7.4.110.0090.00916.65
7.4.100.0090.00916.74
7.4.90.0030.02016.53
7.4.80.0080.00919.39
7.4.70.0130.01016.66
7.4.60.0030.01316.52
7.4.50.0030.00316.59
7.4.40.0050.01016.60
7.4.30.0130.00316.41
7.4.00.0140.00315.07
7.3.330.0030.00313.38
7.3.320.0050.00013.36
7.3.310.0040.00416.39
7.3.300.0030.00316.36
7.3.290.0060.00916.38
7.3.280.0090.00816.31
7.3.270.0100.00917.40
7.3.260.0130.00316.26
7.3.250.0070.01116.43
7.3.240.0100.00716.43
7.3.230.0100.00916.39
7.3.210.0030.01416.33
7.3.200.0080.00819.39
7.3.190.0110.01016.22
7.3.180.0030.01316.42
7.3.170.0060.01116.61
7.3.160.0030.01316.60
7.3.120.0050.01114.81
7.3.110.0110.01114.81
7.3.100.0060.00814.81
7.3.90.0040.00714.57
7.3.80.0060.00614.87
7.3.70.0030.00714.78
7.3.60.0030.01014.75
7.3.50.0070.01014.77
7.3.40.0100.01014.60
7.3.30.0130.00314.52
7.3.20.0000.01316.73
7.3.10.0070.00716.76
7.3.00.0080.00616.60
7.2.330.0060.01016.48
7.2.320.0100.01016.75
7.2.310.0030.01216.72
7.2.300.0030.01316.66
7.2.290.0090.00916.40
7.2.250.0090.00915.23
7.2.240.0060.01214.93
7.2.230.0060.00914.83
7.2.220.0080.00315.25
7.2.210.0060.00814.88
7.2.200.0090.00314.95
7.2.190.0030.00915.14
7.2.180.0100.00714.99
7.2.170.0030.01714.93
7.2.130.0110.00316.77
7.2.120.0070.01116.91
7.2.110.0030.00616.77
7.2.100.0030.01016.77
7.2.90.0120.00616.60
7.2.80.0080.00016.85
7.2.70.0060.00816.86
7.2.60.0070.00816.85
7.2.50.0000.00816.95
7.2.40.0090.00216.77
7.2.30.0000.01316.68
7.2.20.0030.00917.00
7.2.10.0080.00416.72
7.2.00.0090.00416.91
7.1.330.0030.01215.95
7.1.320.0000.01515.63
7.1.310.0100.00315.88
7.1.300.0080.00615.75
7.1.290.0100.00715.68
7.1.280.0060.00615.70
7.1.270.0060.00315.70
7.1.260.0040.00915.65
7.1.250.0000.01215.57
7.1.200.0030.01015.85
7.1.100.0060.00618.20
7.1.70.0040.00416.91
7.1.60.0090.00919.25
7.1.50.0100.01316.71
7.1.00.0030.07722.36
7.0.200.0090.00616.71
7.0.140.0070.07022.07
7.0.60.0130.07719.88
7.0.50.0100.03317.83
7.0.40.0130.08020.27
7.0.30.0270.08720.24
7.0.20.0270.07720.23
7.0.10.0000.05320.10
7.0.00.0030.04020.16
5.6.280.0100.06720.99
5.6.210.0030.04720.47
5.6.200.0130.08018.24
5.6.190.0130.07720.48
5.6.180.0400.06720.54
5.6.170.0130.04720.39
5.6.160.0000.09720.39
5.6.150.0130.06318.15
5.6.140.0070.06718.27
5.6.130.0100.07018.27
5.6.120.0100.05020.98
5.6.110.0070.08721.02
5.6.100.0100.08721.01
5.6.90.0100.08020.97
5.6.80.0100.08320.36
5.5.350.4100.04320.36
5.5.340.0030.04717.98
5.5.330.0130.08020.23
5.5.320.0200.06020.56
5.5.310.0230.03020.24
5.5.300.0000.08017.95
5.5.290.0130.08017.96
5.5.280.0030.05020.89
5.5.270.0100.08320.80
5.5.260.0070.07720.87
5.5.250.0130.07320.71
5.5.240.0030.04020.24
5.4.450.0230.03719.34
5.4.440.0170.04319.46
5.4.430.0200.03719.24
5.4.420.0270.05019.48
5.4.410.0230.07719.11
5.4.400.0200.06019.20
5.4.390.0270.07019.13
5.4.380.0230.05019.24
5.4.370.0300.06018.98
5.4.360.0200.04719.13
5.4.350.0170.04019.30
5.4.340.0170.08019.09
5.4.320.0230.03319.15
5.4.310.0300.04319.09
5.4.300.0230.04319.23
5.4.290.0230.04318.99
5.4.280.0270.03319.09
5.4.270.0200.04019.24
5.4.260.0230.04319.00
5.4.250.0230.04319.08
5.4.240.0230.04718.96
5.4.230.0200.07718.84
5.4.220.0200.06318.96
5.4.210.0200.04019.14
5.4.200.0230.06319.18
5.4.190.0200.04319.08
5.4.180.0230.06718.86
5.4.170.0270.04019.23
5.4.160.0230.04718.82
5.4.150.0230.07719.06
5.4.140.0230.03316.42
5.4.130.0270.04316.51
5.4.120.0130.04316.25
5.4.110.0300.06716.26
5.4.100.0170.05716.40
5.4.90.0230.05316.37
5.4.80.0330.05716.43
5.4.70.0230.05016.34
5.4.60.0230.07016.38
5.4.50.0230.05716.53
5.4.40.0270.06316.34
5.4.30.0300.06716.22
5.4.20.0200.04716.37
5.4.10.0230.07316.48
5.4.00.0230.07715.90
5.3.290.0200.06314.57
5.3.280.0270.06314.82
5.3.270.0230.06714.84
5.3.260.0230.07014.53
5.3.250.0130.05014.53
5.3.240.0200.05714.53
5.3.230.0270.06714.65
5.3.220.0300.06314.53
5.3.210.0270.06014.57
5.3.200.0330.04014.56
5.3.190.0230.04714.65
5.3.180.0230.07014.57
5.3.170.0270.05314.71
5.3.160.0330.06014.71
5.3.150.0330.06314.62
5.3.140.0270.05314.57
5.3.130.0130.06714.60
5.3.120.0300.06014.70
5.3.110.0170.06014.60
5.3.100.0300.05313.95
5.3.90.0230.06714.25
5.3.80.0330.04014.17
5.3.70.0130.04013.93
5.3.60.0270.06314.12
5.3.50.0270.07013.86
5.3.40.0270.06713.97
5.3.30.0200.07013.82
5.3.20.0130.04013.91
5.3.10.0200.04313.75
5.3.00.0130.04313.66
5.2.170.0170.04312.53
5.2.160.0170.06312.53
5.2.150.0130.04012.53
5.2.140.0200.05012.53
5.2.130.0200.04012.53
5.2.120.0170.02712.53
5.2.110.0200.03012.53
5.2.100.0170.03312.53
5.2.90.0200.05312.53
5.2.80.0200.03012.53
5.2.70.0170.06012.53
5.2.60.0200.03712.53
5.2.50.0200.03012.53
5.2.40.0100.04712.53
5.2.30.0170.05312.53
5.2.20.0170.05712.53
5.2.10.0200.04712.53
5.2.00.0130.02712.53
5.1.60.0100.05312.53
5.1.50.0130.02012.53
5.1.40.0100.02712.53
5.1.30.0100.02712.53
5.1.20.0170.02312.53
5.1.10.0200.02312.53
5.1.00.0100.03712.53
5.0.50.0170.01312.53
5.0.40.0100.03312.53
5.0.30.0030.04712.53
5.0.20.0070.04312.53
5.0.10.0130.01712.53
5.0.00.0070.03012.53
4.4.90.0070.01712.53
4.4.80.0100.01012.53
4.4.70.0100.01312.53
4.4.60.0030.01712.53
4.4.50.0030.01712.53
4.4.40.0100.02712.53
4.4.30.0030.02012.53
4.4.20.0030.01712.53
4.4.10.0030.01712.53
4.4.00.0030.02712.53
4.3.110.0000.01712.53
4.3.100.0030.01712.53
4.3.90.0070.01312.53
4.3.80.0100.03012.53
4.3.70.0070.01312.53
4.3.60.0070.01312.53
4.3.50.0100.01012.53
4.3.40.0030.03012.53
4.3.30.0030.01712.53
4.3.20.0000.01712.53
4.3.10.0030.03012.53
4.3.00.0000.02312.53

preferences:
37.52 ms | 401 KiB | 5 Q