3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $z = 10; } $a1 = new A(); $z = &$a1->z; var_dump($z); $a2 = clone $a1; $a1 = 11; var_dump($z); $a2 = 12; var_dump($z);

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)
8.3.70.0060.01018.16
8.3.60.0040.01116.38
8.3.50.0110.00922.10
8.3.40.0000.01418.71
8.3.30.0070.01018.58
8.3.20.0040.00420.16
8.3.10.0060.00323.53
8.3.00.0070.00419.66
8.2.190.0110.00416.58
8.2.180.0110.00718.41
8.2.170.0070.00722.96
8.2.160.0100.00320.47
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0080.00021.17
8.2.120.0090.00026.35
8.2.110.0060.00320.38
8.2.100.0080.00417.80
8.2.90.0050.00319.17
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0040.00417.79
8.2.50.0080.00018.07
8.2.40.0100.00020.35
8.2.30.0000.00720.51
8.2.20.0000.00717.57
8.2.10.0040.00418.01
8.2.00.0040.00418.04
8.1.280.0110.00425.92
8.1.270.0040.00420.33
8.1.260.0000.00728.09
8.1.250.0040.00428.09
8.1.240.0030.00622.01
8.1.230.0070.00417.70
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0030.00617.35
8.1.190.0030.00617.25
8.1.180.0050.00318.10
8.1.170.0030.00618.51
8.1.160.0080.00020.58
8.1.150.0000.00818.79
8.1.140.0030.00619.40
8.1.130.0000.00717.64
8.1.120.0000.00717.32
8.1.110.0000.00817.42
8.1.100.0040.00417.43
8.1.90.0000.00817.41
8.1.80.0070.00017.38
8.1.70.0070.00017.41
8.1.60.0000.00717.50
8.1.50.0030.00617.43
8.1.40.0000.00817.52
8.1.30.0030.00617.52
8.1.20.0040.00417.63
8.1.10.0040.00417.50
8.1.00.0000.01117.46
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0000.00718.37
8.0.270.0030.00517.20
8.0.260.0030.00317.10
8.0.250.0040.00416.94
8.0.240.0030.00316.88
8.0.230.0030.00316.88
8.0.220.0050.00316.74
8.0.210.0030.00616.77
8.0.200.0060.00016.93
8.0.190.0000.00816.77
8.0.180.0060.00316.75
8.0.170.0000.00816.87
8.0.160.0030.00316.72
8.0.150.0080.00016.80
8.0.140.0050.00216.80
8.0.130.0060.00013.23
8.0.120.0040.00416.75
8.0.110.0040.00416.82
8.0.100.0070.00016.73
8.0.90.0040.00416.89
8.0.80.0120.00416.88
8.0.70.0040.00416.71
8.0.60.0050.00316.78
8.0.50.0000.00716.70
8.0.30.0110.00716.95
8.0.20.0120.00717.40
8.0.10.0050.00216.82
8.0.00.0090.01316.57
7.4.330.0050.00016.66
7.4.320.0030.00316.44
7.4.300.0000.00616.36
7.4.290.0030.00316.42
7.4.280.0030.00616.45
7.4.270.0040.00416.42
7.4.260.0070.00316.30
7.4.250.0040.00416.50
7.4.240.0020.00516.38
7.4.230.0000.00716.36
7.4.220.0070.01116.47
7.4.210.0060.00916.52
7.4.200.0050.00216.64
7.4.160.0070.01016.24
7.4.150.0100.00917.40
7.4.140.0160.00717.86
7.4.130.0130.01016.39
7.4.120.0070.00916.43
7.4.110.0070.01016.30
7.4.100.0110.01016.39
7.4.90.0060.01216.47
7.4.80.0170.00619.39
7.4.70.0070.01116.38
7.4.60.0100.00716.28
7.4.50.0070.00716.31
7.4.40.0130.00316.18
7.4.30.0100.00816.42
7.4.10.0060.01214.84
7.4.00.0030.01514.63
7.3.330.0000.00513.09
7.3.320.0060.00013.17
7.3.310.0030.00316.40
7.3.300.0060.00016.32
7.3.290.0060.01016.28
7.3.280.0090.01016.30
7.3.270.0100.00717.40
7.3.260.0090.00916.64
7.3.250.0110.00716.36
7.3.240.0100.00716.34
7.3.230.0030.01316.52
7.3.210.0110.01116.50
7.3.200.0070.01016.61
7.3.190.0140.00416.46
7.3.180.0000.01616.35
7.3.170.0210.00016.45
7.3.160.0000.01616.29
7.3.130.0140.00314.93
7.3.120.0100.00714.78
7.3.110.0030.01414.75
7.3.100.0100.00314.85
7.3.90.0100.00714.86
7.3.80.0060.00914.70
7.3.70.0060.00614.76
7.3.60.0060.00614.87
7.3.50.0080.00414.73
7.3.40.0120.00314.75
7.3.30.0120.00614.64
7.3.20.0040.01116.62
7.3.10.0110.00316.80
7.3.00.0080.00416.76
7.2.330.0030.01416.75
7.2.320.0140.00416.36
7.2.310.0060.00916.70
7.2.300.0130.01016.68
7.2.290.0130.01016.66
7.2.260.0060.01215.07
7.2.250.0040.01514.95
7.2.240.0030.01014.72
7.2.230.0100.00615.14
7.2.220.0060.00614.71
7.2.210.0030.01414.66
7.2.200.0030.01314.98
7.2.190.0000.01414.84
7.2.180.0060.00314.98
7.2.170.0030.01214.94
7.2.160.0060.00614.62
7.2.150.0080.00816.84
7.2.140.0030.01016.83
7.2.130.0060.00616.90
7.2.120.0070.00716.98
7.2.110.0070.00716.88
7.2.100.0000.01616.60
7.2.90.0030.01316.98
7.2.80.0100.00616.96
7.2.70.0070.01016.87
7.2.60.0090.00716.70
7.2.50.0140.00716.86
7.2.40.0060.00616.54
7.2.30.0080.00816.56
7.2.20.0110.00416.92
7.2.10.0070.00316.73
7.2.00.0110.01117.81
7.1.330.0030.01015.76
7.1.320.0060.00915.55
7.1.310.0040.01215.64
7.1.300.0000.01515.54
7.1.290.0050.00315.82
7.1.280.0060.00915.52
7.1.270.0070.01015.75
7.1.260.0070.00715.79
7.1.250.0060.00615.83
7.1.240.0100.00615.85
7.1.230.0040.01115.75
7.1.220.0030.01015.61
7.1.210.0080.00415.74
7.1.200.0060.00415.81
7.1.190.0160.00015.87
7.1.180.0090.00315.83
7.1.170.0070.00715.55
7.1.160.0070.00715.91
7.1.150.0060.00915.64
7.1.140.0030.01115.48
7.1.130.0040.00715.91
7.1.120.0000.01415.84
7.1.110.0060.01215.86
7.1.100.0050.00916.85
7.1.90.0040.01115.89
7.1.80.0070.00415.73
7.1.70.0060.00416.37
7.1.60.0080.01217.43
7.1.50.0090.00916.17
7.1.40.0090.00415.75
7.1.30.0030.00715.77
7.1.20.0000.01115.62
7.1.10.0030.01315.68
7.1.00.0120.03719.20
7.0.330.0090.00615.30
7.0.320.0110.00415.35
7.0.310.0090.00615.35
7.0.300.0030.00715.27
7.0.290.0060.00615.14
7.0.280.0000.01515.49
7.0.270.0080.00415.13
7.0.260.0000.01315.51
7.0.250.0040.01215.14
7.0.240.0100.00715.52
7.0.230.0050.00515.32
7.0.220.0070.00715.38
7.0.210.0030.00815.38
7.0.200.0070.00515.88
7.0.190.0030.01015.42
7.0.180.0070.00715.56
7.0.170.0080.00315.64
7.0.160.0060.00315.53
7.0.150.0040.00815.50
7.0.140.0030.00715.23
7.0.130.0060.00915.48
7.0.120.0090.00615.38
7.0.110.0060.00315.31
7.0.100.0030.00615.30
7.0.90.0000.01415.28
7.0.80.0120.00315.63
7.0.70.0120.00315.38
7.0.60.0030.03017.78
7.0.50.0080.02416.63
7.0.40.0070.03516.81
7.0.30.0210.04016.94
7.0.20.0210.02516.84
7.0.10.0060.02216.88
7.0.00.0090.03416.75
5.6.400.0090.00614.27
5.6.390.0040.01114.32
5.6.380.0040.00714.29
5.6.370.0060.00613.97
5.6.360.0030.00814.47
5.6.350.0070.01014.59
5.6.340.0030.00914.17
5.6.330.0030.01114.32
5.6.320.0030.01314.37
5.6.310.0030.01014.14
5.6.300.0060.00614.26
5.6.290.0040.00814.18
5.6.280.0030.02217.68
5.6.270.0030.00614.24
5.6.260.0100.00314.20
5.6.250.0070.00714.29
5.6.240.0050.00314.32
5.6.230.0060.00314.52
5.6.220.0070.00314.25
5.6.210.0060.03017.31
5.6.200.0040.02916.18
5.6.190.0040.02617.62
5.6.180.0170.03017.47
5.6.170.0150.03717.36
5.6.160.0050.03217.54
5.6.150.0050.03716.21
5.6.140.0050.02816.10
5.6.130.0120.01816.29
5.6.120.0050.04717.70
5.6.110.0080.04617.63
5.6.100.0100.02517.67
5.6.90.0080.04017.66
5.6.80.0070.04417.26
5.6.70.0000.01814.10
5.6.60.0030.00614.23
5.6.50.0060.00614.34
5.6.40.0040.00414.14
5.6.30.0070.00314.08
5.6.20.0060.00914.13
5.6.10.0040.01113.96
5.6.00.0030.00614.38
5.5.380.0030.00614.13
5.5.370.0060.00314.07
5.5.360.0000.00814.32
5.5.350.0140.03817.30
5.5.340.0080.02316.22
5.5.330.0080.02317.31
5.5.320.0150.02917.20
5.5.310.0190.04017.33
5.5.300.0090.04416.08
5.5.290.0050.04415.96
5.5.280.0130.02217.68
5.5.270.0060.02017.46
5.5.260.0080.03417.69
5.5.250.0080.04817.36
5.5.240.0100.03317.04
5.5.230.0030.01414.30
5.5.220.0030.00614.22
5.5.210.0060.00314.02
5.5.200.0080.00414.21
5.5.190.0000.01414.38
5.5.180.0100.00714.40
5.5.170.0070.00714.41
5.5.160.0030.01013.94
5.5.150.0060.00914.30
5.5.140.0050.00514.23
5.5.130.0060.00914.27
5.5.120.0080.00414.10
5.5.110.0100.00314.46
5.5.100.0070.00714.12
5.5.90.0090.00614.29
5.5.80.0100.00714.33
5.5.70.0090.00314.33
5.5.60.0040.00813.72
5.5.50.0100.00013.99
5.5.40.0110.00314.42
5.5.30.0060.00914.26
5.5.20.0030.00914.18
5.5.10.0060.00614.09
5.5.00.0000.00913.67

preferences:
51.42 ms | 401 KiB | 5 Q