3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo {} class_alias('Foo', '0'); $className = '0'; var_dump(class_exists('0')); var_dump(new $className);

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)
8.3.70.0070.01018.15
8.3.60.0160.00618.18
8.3.50.0070.00916.54
8.3.40.0060.01318.54
8.3.30.0060.00918.54
8.3.20.0040.00421.73
8.3.10.0000.00823.44
8.3.00.0040.00419.56
8.2.190.0130.01016.58
8.2.180.0150.00418.29
8.2.170.0040.01122.96
8.2.160.0100.00322.07
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00422.27
8.2.120.0050.00226.35
8.2.110.0030.00619.35
8.2.100.0090.00317.71
8.2.90.0080.00019.22
8.2.80.0040.00417.97
8.2.70.0080.00017.36
8.2.60.0050.00317.91
8.2.50.0000.00918.10
8.2.40.0040.00420.59
8.2.30.0040.00419.25
8.2.20.0040.00417.98
8.2.10.0000.00817.87
8.2.00.0070.00017.86
8.1.280.0110.00425.92
8.1.270.0030.00622.06
8.1.260.0030.01026.35
8.1.250.0040.00428.09
8.1.240.0040.00421.35
8.1.230.0100.00019.21
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0050.00317.23
8.1.180.0050.00218.10
8.1.170.0040.00418.54
8.1.160.0050.00218.89
8.1.150.0070.00020.09
8.1.140.0070.00019.52
8.1.130.0040.00418.74
8.1.120.0000.01017.30
8.1.110.0000.00717.42
8.1.100.0030.00517.43
8.1.90.0000.00717.23
8.1.80.0040.00417.29
8.1.70.0030.00317.37
8.1.60.0000.00817.58
8.1.50.0060.00317.47
8.1.40.0040.00417.43
8.1.30.0040.00417.64
8.1.20.0040.00417.53
8.1.10.0080.00417.51
8.1.00.0000.00717.51
8.0.300.0000.00719.95
8.0.290.0000.00716.63
8.0.280.0050.00318.38
8.0.270.0000.00717.04
8.0.260.0040.00416.68
8.0.250.0000.00616.92
8.0.240.0040.00416.85
8.0.230.0040.00416.78
8.0.220.0000.00616.77
8.0.210.0030.00316.81
8.0.200.0000.00716.78
8.0.190.0030.00516.86
8.0.180.0030.00316.74
8.0.170.0000.00816.89
8.0.160.0070.00016.73
8.0.150.0040.00416.66
8.0.140.0080.00016.77
8.0.130.0030.00313.25
8.0.120.0040.00416.79
8.0.110.0040.00416.61
8.0.100.0070.00016.76
8.0.90.0050.00216.74
8.0.80.0070.00716.88
8.0.70.0000.00716.86
8.0.60.0000.00716.76
8.0.50.0070.00016.94
8.0.30.0100.00916.94
8.0.20.0110.00917.40
8.0.10.0030.00517.02
8.0.00.0100.00716.75
7.4.330.0030.00315.55
7.4.320.0000.00616.52
7.4.300.0030.00316.55
7.4.290.0040.00816.48
7.4.280.0060.00316.49
7.4.270.0040.00416.54
7.4.260.0030.00313.23
7.4.250.0040.00416.32
7.4.240.0000.00716.46
7.4.230.0030.00316.38
7.4.220.0030.01616.46
7.4.210.0080.00816.48
7.4.200.0000.00716.63
7.4.160.0030.01216.28
7.4.150.0100.01417.40
7.4.140.0070.01317.86
7.4.130.0080.01416.54
7.4.120.0160.00716.46
7.4.110.0130.00416.44
7.4.100.0080.00816.39
7.4.90.0090.00916.36
7.4.80.0100.00719.39
7.4.70.0030.01316.43
7.4.60.0150.00016.26
7.4.50.0090.00916.38
7.4.40.0100.00716.32
7.4.30.0130.00416.30
7.4.00.0070.00714.98
7.3.330.0060.00013.06
7.3.320.0060.00013.20
7.3.310.0000.00916.25
7.3.300.0030.00316.24
7.3.290.0070.00816.22
7.3.280.0100.00816.21
7.3.270.0160.00717.40
7.3.260.0110.00616.42
7.3.250.0130.00816.33
7.3.240.0090.01016.35
7.3.230.0100.00716.25
7.3.210.0110.00716.44
7.3.200.0070.01316.52
7.3.190.0090.01016.25
7.3.180.0110.00616.30
7.3.170.0120.00316.46
7.3.160.0120.00916.42
7.3.10.0050.00716.48
7.3.00.0050.00516.43
7.2.330.0060.00916.47
7.2.320.0150.00816.41
7.2.310.0040.01316.60
7.2.300.0030.01316.39
7.2.290.0100.00616.34
7.2.130.0040.01016.65
7.2.120.0080.00516.85
7.2.110.0040.01116.76
7.2.100.0020.00816.71
7.2.90.0100.00616.72
7.2.80.0040.00716.62
7.2.70.0060.01016.74
7.2.60.0090.00316.73
7.2.50.0080.00516.65
7.2.40.0060.00716.81
7.2.30.0040.01016.81
7.2.20.0050.00716.69
7.2.10.0040.00616.70
7.2.00.0040.01017.65
7.1.250.0030.00715.70
7.1.200.0070.00715.38
7.1.100.0070.00417.96
7.1.70.0040.00816.80
7.1.60.0430.01333.15
7.1.50.0470.00333.02
7.1.40.0470.00732.39
7.1.30.0600.01032.58
7.1.20.1500.00732.89
7.1.10.0430.00314.77
7.1.00.0200.01714.71
7.0.200.0270.00714.77
7.0.190.0230.01014.87
7.0.180.0400.00714.29
7.0.170.0230.01314.11
7.0.160.0300.01714.39
7.0.150.0470.01014.42
7.0.140.0270.01314.34
7.0.130.0200.01714.54
7.0.120.0330.01314.50
7.0.110.0400.00014.62
7.0.100.0270.01014.53
7.0.90.0370.00714.52
7.0.80.0270.01014.34
7.0.70.0330.00314.40
7.0.60.0330.01014.23
7.0.50.0300.00714.34
7.0.40.0400.01014.37
7.0.30.0230.01014.60
7.0.20.0300.01014.55
7.0.10.0230.01314.45
7.0.00.0300.00714.30

preferences:
17.93 ms | 401 KiB | 5 Q