3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mock = [ 'foo' => null ]; foreach ($mock as &$item) { $item = 'foo'; } unset($item); $mockCopy = $mock; $mockCopy['foo_copy'] = $mock['foo']; $mockCopy['foo'] = 'bar'; var_dump($mock['foo']);

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)
8.3.60.0110.00716.50
8.3.50.0120.00319.66
8.3.40.0090.00618.79
8.3.30.0070.00718.66
8.3.20.0080.00021.90
8.3.10.0080.00021.89
8.3.00.0040.00422.14
8.2.180.0030.01718.16
8.2.170.0060.00919.08
8.2.160.0070.00722.96
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0000.00726.16
8.2.120.0060.00320.58
8.2.110.0090.00020.89
8.2.100.0090.00317.85
8.2.90.0000.00818.16
8.2.80.0070.00020.35
8.2.70.0040.00417.63
8.2.60.0000.00817.63
8.2.50.0030.00617.93
8.2.40.0040.00418.02
8.2.30.0080.00021.02
8.2.20.0000.00718.23
8.2.10.0050.00218.18
8.2.00.0040.00417.78
8.1.280.0150.00325.92
8.1.270.0020.00522.24
8.1.260.0090.00026.35
8.1.250.0080.00028.09
8.1.240.0030.00622.06
8.1.230.0050.01020.82
8.1.220.0030.00617.74
8.1.210.0030.00619.04
8.1.200.0060.00317.48
8.1.190.0090.00017.23
8.1.180.0060.00318.10
8.1.170.0050.00317.62
8.1.160.0000.00718.84
8.1.150.0000.00718.55
8.1.140.0030.00519.54
8.1.130.0070.00019.01
8.1.120.0000.00717.50
8.1.110.0000.00817.47
8.1.100.0000.00717.44
8.1.90.0040.00417.45
8.1.80.0000.00717.45
8.1.70.0000.00717.45
8.1.60.0000.00717.58
8.1.50.0000.00817.57
8.1.40.0030.00517.54
8.1.30.0030.00617.68
8.1.20.0050.00317.58
8.1.10.0020.00517.48
8.1.00.0050.00217.37
8.0.300.0070.00020.13
8.0.290.0040.00416.75
8.0.280.0040.00418.36
8.0.270.0000.00817.26
8.0.260.0040.00417.21
8.0.250.0000.00716.96
8.0.240.0000.00816.93
8.0.230.0050.00316.79
8.0.220.0040.00416.85
8.0.210.0000.00716.85
8.0.200.0070.00517.01
8.0.190.0000.00816.91
8.0.180.0040.00416.94
8.0.170.0000.00716.90
8.0.160.0070.00016.91
8.0.150.0000.00716.86
8.0.140.0050.00516.79
8.0.130.0060.00013.39
8.0.120.0050.00316.89
8.0.110.0040.00416.79
8.0.100.0030.00516.84
8.0.90.0000.00716.89
8.0.80.0070.01116.90
8.0.70.0040.00416.84
8.0.60.0040.00416.91
8.0.50.0050.00316.87
8.0.30.0070.01217.26
8.0.20.0090.01117.40
8.0.10.0000.00716.88
8.0.00.0070.01016.68
7.4.330.0000.00515.55
7.4.320.0000.00616.59
7.4.300.0000.00616.41
7.4.290.0030.00316.47
7.4.280.0040.00416.40
7.4.270.0070.00016.58
7.4.260.0000.00816.35
7.4.250.0000.00716.57
7.4.240.0000.00716.59
7.4.230.0040.00416.63
7.4.220.0160.00316.45
7.4.210.0090.01516.40
7.4.200.0000.00716.63
7.4.160.0010.01416.53
7.4.150.0100.00717.40
7.4.140.0050.01317.86
7.4.130.0100.00716.52
7.4.120.0080.01316.52
7.4.110.0150.00416.59
7.4.100.0140.00316.64
7.4.90.0070.01016.38
7.4.80.0090.01219.39
7.4.70.0030.01916.58
7.4.60.0300.00616.52
7.4.50.0000.01516.57
7.4.40.0100.01016.52
7.4.30.0120.00616.53
7.4.00.0030.01315.22
7.3.330.0000.00513.20
7.3.320.0000.00513.25
7.3.310.0050.00316.38
7.3.300.0000.00716.17
7.3.290.0090.00616.33
7.3.280.0100.00816.30
7.3.270.0160.00417.40
7.3.260.0140.00816.46
7.3.250.0110.00916.34
7.3.240.0070.01016.60
7.3.230.0000.01616.36
7.3.210.0060.01116.43
7.3.200.0120.00919.39
7.3.190.0100.00516.29
7.3.180.0110.00416.58
7.3.170.0060.01616.45
7.3.160.0100.01016.55
7.2.330.0060.01516.71
7.2.320.0070.01316.70
7.2.310.0060.01116.36
7.2.300.0100.01416.64
7.2.290.0040.01216.67
7.2.110.0120.00816.63
7.2.100.0220.00316.61
7.2.90.0220.00316.75
7.2.80.0240.00416.49
7.2.70.0470.01016.04
7.2.60.0460.00616.30
7.2.50.0540.00415.85
7.2.40.0530.00815.95
7.2.30.0420.01115.97
7.2.20.0510.00315.93
7.2.10.0600.00515.82
7.2.00.0580.00615.80
7.1.230.0290.00715.67
7.1.220.0140.01015.96
7.1.210.0180.00615.55
7.1.200.0120.00415.69
7.1.190.0100.00615.49
7.1.180.0120.00815.71
7.1.170.0620.00514.80
7.1.160.0520.00914.94
7.1.150.0490.00414.81
7.1.140.0600.00814.81
7.1.130.0440.00714.66
7.1.120.0430.00814.86
7.1.110.0430.01014.96
7.1.100.0510.00914.96
7.1.90.0460.00314.90
7.1.80.0450.00514.95
7.1.70.0220.00915.52
7.1.60.0400.01121.44
7.1.50.0400.00521.39
7.1.40.1270.00823.68
7.1.30.0440.00823.72
7.1.20.0430.01623.95
7.1.10.0310.02317.19
7.1.00.0230.02417.36
7.0.310.0200.00315.42
7.0.300.0380.00514.31
7.0.290.0430.01114.34
7.0.280.0220.00615.47
7.0.270.0580.00514.46
7.0.260.0640.00214.43
7.0.250.0530.01114.50
7.0.240.0540.00415.64
7.0.230.0480.00914.54
7.0.220.0650.00514.43
7.0.210.0420.00314.54
7.0.200.0250.01015.36
7.0.190.0510.00814.50
7.0.180.0290.00714.36
7.0.170.0290.00814.60
7.0.160.0440.00314.40
7.0.150.0170.02216.92
7.0.140.0200.02316.90
7.0.130.0250.02216.98
7.0.120.0320.02517.03
7.0.110.0190.02316.90
7.0.100.0210.02316.98
7.0.90.0230.02716.78
7.0.80.0220.02116.92
7.0.70.0230.02316.98
7.0.60.0110.02716.92
7.0.50.0120.02416.95
7.0.40.0230.02416.33
7.0.30.0220.02416.33
7.0.20.0510.02316.29
7.0.10.0170.02616.24
7.0.00.0210.02716.38
5.6.380.0000.01314.26

preferences:
60.13 ms | 404 KiB | 6 Q