3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL & ~E_DEPRICATED); ini_set('display_errors', true); $foo = 'foo'; $bar = (unset) $foo; var_dump(isset($bar));

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)
8.3.40.0170.00318.71
8.3.30.0170.00318.45
8.3.20.0040.01120.16
8.3.10.0040.00421.83
8.3.00.0000.00821.60
8.2.170.0140.00722.96
8.2.160.0070.00720.47
8.2.150.0040.00424.18
8.2.140.0140.00424.66
8.2.130.0040.00421.07
8.2.120.0050.00326.35
8.2.110.0050.00521.00
8.2.100.0110.00017.78
8.2.90.0040.00417.63
8.2.80.0000.00818.56
8.2.70.0030.00617.50
8.2.60.0050.00317.38
8.2.50.0060.00317.91
8.2.40.0060.00321.12
8.2.30.0000.00719.36
8.2.20.0040.00417.52
8.2.10.0000.00717.90
8.2.00.0050.00217.92
8.1.270.0120.00622.11
8.1.260.0050.00328.09
8.1.250.0050.00328.09
8.1.240.0030.00723.88
8.1.230.0080.00322.16
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0040.00417.22
8.1.190.0000.00917.10
8.1.180.0030.00519.23
8.1.170.0000.00817.62
8.1.160.0050.00320.62
8.1.150.0040.00418.84
8.1.140.0040.00419.43
8.1.130.0070.00017.48
8.1.120.0000.00717.39
8.1.110.0040.00417.20
8.1.100.0030.00617.32
8.1.90.0040.00417.31
8.1.80.0040.00417.21
8.1.70.0000.00717.33
8.1.60.0040.00417.32
8.1.50.0000.00917.40
8.1.40.0040.00417.42
8.1.30.0040.00417.48
8.1.20.0000.00717.50
8.1.10.0050.00317.36
8.1.00.0030.00617.27
8.0.300.0000.00718.77
8.0.290.0000.00816.63
8.0.280.0000.00718.26
8.0.270.0000.00717.18
8.0.260.0060.00017.01
8.0.250.0030.00316.77
8.0.240.0030.00316.77
8.0.230.0000.00716.79
8.0.220.0000.00616.84
8.0.210.0050.00216.82
8.0.200.0040.00416.88
8.0.190.0080.00016.86
8.0.180.0040.00416.82
8.0.170.0040.00416.75
8.0.160.0080.00016.82
8.0.150.0040.00416.88
8.0.140.0030.00316.68
8.0.130.0000.00613.28
8.0.120.0000.00816.64
8.0.110.0040.00416.80
8.0.100.0030.00516.72
8.0.90.0070.00016.83
8.0.80.0090.01216.79
8.0.70.0030.00516.75
8.0.60.0070.00016.84
8.0.50.0050.00316.71
8.0.30.0100.00616.98
8.0.20.0130.00517.40
8.0.10.0040.00416.83
8.0.00.0140.01316.68
7.4.330.0030.00316.71
7.4.320.0030.00316.59
7.4.300.0080.00016.54
7.4.290.0060.00316.58
7.4.280.0070.00016.63
7.4.270.0000.00716.62
7.4.260.0070.00016.46
7.4.250.0070.00016.46
7.4.240.0050.00316.58
7.4.230.0000.00816.50
7.4.220.0130.00616.63
7.4.210.0120.00316.52
7.4.200.0070.00016.41
7.4.160.0060.00916.69
7.4.150.0030.01317.40
7.4.140.0130.00917.86
7.4.130.0100.00616.41
7.4.120.0110.00816.46
7.4.110.0130.01016.48
7.4.100.0120.00616.53
7.4.90.0100.00716.58
7.4.80.0090.00919.39
7.4.70.0170.00016.59
7.4.60.0100.00716.43
7.4.50.0000.01516.58
7.4.40.0100.00616.23
7.4.30.0110.01116.48
7.4.00.0060.01115.01
7.3.330.0000.00613.20
7.3.320.0000.00613.30
7.3.310.0030.00316.40
7.3.300.0070.00016.23
7.3.290.0000.00716.32
7.3.280.0120.00816.29
7.3.270.0160.00617.40
7.3.260.0030.01316.40
7.3.250.0100.00816.31
7.3.240.0120.01216.36
7.3.230.0130.00516.46
7.3.210.0100.00616.34
7.3.200.0060.01219.39
7.3.190.0090.00616.32
7.3.180.0100.00616.32
7.3.170.0060.01016.52
7.3.160.0040.01116.54
7.3.120.0140.00414.66
7.3.110.0040.01514.39
7.3.100.0080.00414.54
7.3.90.0060.00914.96
7.3.80.0060.00615.04
7.3.70.0060.00314.40
7.3.60.0090.00614.74
7.3.50.0040.01214.77
7.3.40.0030.00714.70
7.3.30.0090.00614.87
7.3.20.0000.01616.74
7.3.10.0030.00716.70
7.3.00.0030.00616.32
7.2.330.0060.01616.37
7.2.320.0200.00316.63
7.2.310.0060.01016.62
7.2.300.0110.00616.65
7.2.290.0100.00616.67
7.2.250.0030.01515.05
7.2.240.0070.01315.09
7.2.230.0070.00715.02
7.2.220.0060.00915.09
7.2.210.0040.00814.96
7.2.200.0040.01215.06
7.2.190.0060.00914.97
7.2.180.0040.01114.98
7.2.170.0040.00714.99
7.2.60.0070.00716.68
7.2.00.0000.01219.49
7.1.330.0000.01415.50
7.1.320.0040.01115.63
7.1.310.0060.01015.97
7.1.300.0070.00315.45
7.1.290.0110.00415.75
7.1.280.0070.00415.46
7.1.270.0060.00915.63
7.1.260.0030.00715.58
7.1.200.0170.00015.36
7.1.100.0000.01117.83
7.1.70.0000.00916.88
7.1.60.0100.01019.40
7.1.50.0070.01416.90
7.1.00.0070.07322.36
7.0.200.0160.01014.75
7.0.60.0270.06721.82
7.0.50.0070.06317.87
7.0.40.0030.06020.21
7.0.30.0230.03720.09
7.0.20.0330.08020.01
7.0.10.0070.09020.21
7.0.00.0100.05020.00
5.6.280.0070.06720.88
5.6.210.0030.04320.75
5.6.200.0100.03718.13
5.6.190.0000.06320.39
5.6.180.0270.05720.57
5.6.170.0170.05720.33
5.6.160.0130.03720.72
5.6.150.0100.08018.12
5.6.140.0070.08018.18
5.6.130.0000.04318.21
5.6.120.0070.08321.00
5.6.110.0030.08721.13
5.6.100.0070.09021.07
5.6.90.0130.07720.91
5.6.80.0170.06720.37
5.5.350.0070.03720.29
5.5.340.0030.05717.98
5.5.330.0000.07020.25
5.5.320.0530.05720.29
5.5.310.0230.03720.18
5.5.300.0070.03717.91
5.5.290.0030.04717.96
5.5.280.0070.03720.86
5.5.270.0070.08020.64
5.5.260.0030.07020.83
5.5.250.0070.08720.60
5.5.240.0430.06320.34

preferences:
52.09 ms | 400 KiB | 5 Q