3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = [1, 2, 3]; foreach($b ? $b : [] as &$v){ $v = $v*2; unset($v); } 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)
8.3.60.0100.01016.38
8.3.50.0120.00618.30
8.3.40.0090.00618.67
8.3.30.0090.00618.33
8.3.20.0060.00320.21
8.3.10.0050.00323.56
8.3.00.0040.00419.38
8.2.180.0040.01116.75
8.2.170.0120.00322.96
8.2.160.0040.01120.22
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00317.63
8.2.120.0000.00826.35
8.2.110.0030.00622.30
8.2.100.0080.00417.80
8.2.90.0040.00419.05
8.2.80.0050.00317.97
8.2.70.0030.00617.63
8.2.60.0000.00917.79
8.2.50.0000.00818.07
8.2.40.0060.00319.35
8.2.30.0070.00020.52
8.2.20.0060.00317.72
8.2.10.0090.00018.05
8.2.00.0070.00018.16
8.1.280.0150.00425.92
8.1.270.0060.00323.82
8.1.260.0040.00428.09
8.1.250.0000.00728.09
8.1.240.0080.00020.75
8.1.230.0070.00417.75
8.1.220.0030.00517.74
8.1.210.0000.00818.77
8.1.200.0060.00317.34
8.1.190.0040.00417.10
8.1.180.0050.00218.10
8.1.170.0040.00418.84
8.1.160.0000.00822.00
8.1.150.0080.00318.75
8.1.140.0030.00619.61
8.1.130.0070.00017.73
8.1.120.0030.00317.36
8.1.110.0000.00817.43
8.1.100.0030.00317.45
8.1.90.0040.00417.36
8.1.80.0060.00317.47
8.1.70.0030.00317.29
8.1.60.0060.00317.54
8.1.50.0050.00417.56
8.1.40.0000.00717.36
8.1.30.0000.01017.53
8.1.20.0040.00417.48
8.1.10.0040.00417.49
8.1.00.0040.00417.33
8.0.300.0060.00318.77
8.0.290.0070.00016.63
8.0.280.0000.00718.36
8.0.270.0000.00717.25
8.0.260.0000.00617.20
8.0.250.0000.00717.01
8.0.240.0030.00516.92
8.0.230.0030.00316.97
8.0.220.0040.00416.77
8.0.210.0000.00716.88
8.0.200.0060.00017.00
8.0.190.0030.00516.91
8.0.180.0000.00716.88
8.0.170.0040.00416.79
8.0.160.0090.00016.97
8.0.150.0030.00316.80
8.0.140.0000.00716.80
8.0.130.0000.00513.23
8.0.120.0000.00816.74
8.0.110.0030.00416.91
8.0.100.0030.00516.87
8.0.90.0000.00716.83
8.0.80.0040.01116.84
8.0.70.0040.00416.87
8.0.60.0000.00716.84
8.0.50.0040.00416.95
8.0.30.0090.00916.88
8.0.20.0090.01117.41
8.0.10.0040.00417.02
8.0.00.0080.00916.71
7.4.330.0000.00516.71
7.4.320.0060.00016.45
7.4.300.0030.00316.56
7.4.290.0000.00716.61
7.4.280.0040.00416.63
7.4.270.0000.00716.49
7.4.260.0050.00316.55
7.4.250.0080.00016.60
7.4.240.0040.00416.46
7.4.230.0030.00516.31
7.4.220.0150.00316.67
7.4.210.0070.01116.60
7.4.200.0040.00416.40
7.4.160.0090.00616.65
7.4.150.0160.00317.40
7.4.140.0080.01317.86
7.4.130.0100.00716.53
7.4.120.0060.01116.51
7.4.110.0070.01016.70
7.4.100.0070.01016.47
7.4.90.0030.01616.51
7.4.80.0110.00619.39
7.4.70.0030.01416.48
7.4.60.0040.01216.45
7.4.50.0060.00616.21
7.4.40.0090.01616.45
7.4.30.0150.00416.41
7.4.10.0070.01014.99
7.4.00.0080.00814.91
7.3.330.0000.00513.19
7.3.320.0000.00613.17
7.3.310.0050.00216.34
7.3.300.0000.00716.25
7.3.290.0000.00716.28
7.3.280.0110.00816.24
7.3.270.0100.00717.40
7.3.260.0110.00616.50
7.3.250.0160.00516.46
7.3.240.0120.00716.25
7.3.230.0100.01316.39
7.3.210.0030.01316.51
7.3.200.0130.00316.50
7.3.190.0120.00616.30
7.3.180.0090.00616.15
7.3.170.0130.00316.29
7.3.160.0090.00916.38
7.3.130.0090.00614.87
7.3.120.0040.01214.82
7.3.110.0080.00914.93
7.3.100.0090.00914.61
7.3.90.0060.00814.83
7.3.80.0080.00514.86
7.3.70.0020.00814.77
7.3.60.0050.00614.80
7.3.50.0030.00914.68
7.3.40.0030.00814.78
7.3.30.0100.00214.82
7.3.20.0040.01216.50
7.3.10.0020.01116.62
7.3.00.0050.00916.54
7.2.330.0150.00616.76
7.2.320.0040.00616.73
7.2.310.0050.01816.80
7.2.300.0080.00816.80
7.2.290.0080.01116.72
7.2.260.0100.00715.14
7.2.250.0050.01114.85
7.2.240.0060.01014.88
7.2.230.0100.00514.88
7.2.220.0090.00615.18
7.2.210.0020.01315.07
7.2.200.0050.00814.93
7.2.190.0070.01014.76
7.2.180.0060.00615.07
7.2.170.0060.00614.96
7.2.160.0100.00515.04
7.2.150.0060.00816.76
7.2.140.0080.00716.83
7.2.130.0070.00516.64
7.2.120.0070.00716.80
7.2.110.0020.00916.88
7.2.100.0100.00516.58
7.2.90.0070.00516.80
7.2.80.0030.01116.76
7.2.70.0070.00716.79
7.2.60.0080.00616.84
7.2.50.0060.00616.88
7.2.40.0060.00716.98
7.2.30.0050.01016.93
7.2.20.0060.00816.97
7.2.10.0040.00916.95
7.2.00.0060.00717.59
7.1.330.0080.00815.85
7.1.320.0080.00715.67
7.1.310.0050.00815.83
7.1.300.0100.00515.88
7.1.290.0100.00315.88
7.1.280.0040.00715.91
7.1.270.0050.00515.72
7.1.260.0030.00815.80
7.1.250.0060.00315.53
7.1.240.0080.00415.81
7.1.230.0070.00515.64
7.1.220.0000.01215.65
7.1.210.0060.00615.78
7.1.200.0010.01015.76
7.1.190.0030.01015.67
7.1.180.0050.01115.74
7.1.170.0070.00615.62
7.1.160.0090.00515.84
7.1.150.0060.00715.67
7.1.140.0030.00915.88
7.1.130.0050.00815.76
7.1.120.0050.00615.76
7.1.110.0040.00615.78
7.1.100.0040.00716.39
7.1.90.0030.00915.69
7.1.80.0090.00315.79
7.1.70.0010.00816.30
7.1.60.0080.00617.05
7.1.50.0080.00616.12
7.1.40.0020.00815.77
7.1.30.0050.00815.93
7.1.20.0070.00515.71
7.1.10.0070.00715.64
7.1.00.0070.02918.04
7.0.330.0050.00615.41
7.0.320.0080.00615.17
7.0.310.0030.00815.46
7.0.300.0030.00815.32
7.0.290.0030.01015.30
7.0.280.0090.00215.19
7.0.270.0050.00515.18
7.0.260.0000.01215.11
7.0.250.0040.00915.51
7.0.240.0070.00915.54
7.0.230.0090.00415.33
7.0.220.0090.00315.43
7.0.210.0020.01215.52
7.0.200.0160.00715.08
7.0.190.0030.00915.48
7.0.180.0030.01015.45
7.0.170.0020.01215.36
7.0.160.0020.00915.50
7.0.150.0060.00815.56
7.0.140.0080.00415.31
7.0.130.0030.00815.59
7.0.120.0050.00715.10
7.0.110.0030.00715.30
7.0.100.0020.01115.37
7.0.90.0070.00515.24
7.0.80.0090.00515.55
7.0.70.0040.00915.31
7.0.60.0090.02216.84
7.0.50.0050.03316.31
7.0.40.0090.03215.71
7.0.30.0150.02815.69
7.0.20.0080.02815.63
7.0.10.0130.01615.72
7.0.00.0070.01615.61
5.6.400.0030.00914.57
5.6.390.0060.00514.46
5.6.380.0050.00914.37
5.6.370.0080.00514.36
5.6.360.0040.01014.45
5.6.350.0110.00314.28
5.6.340.0070.00514.17
5.6.330.0070.00914.50
5.6.320.0100.00514.49
5.6.310.0070.00414.43
5.6.300.0070.00814.47
5.6.290.0050.01014.34
5.6.280.0070.02116.71
5.6.270.0030.01014.47
5.6.260.0040.00714.30
5.6.250.0000.01314.10
5.6.240.0080.00314.31
5.6.230.0070.00514.37
5.6.220.0050.00814.20
5.6.210.0090.02916.46
5.6.200.0040.03415.65
5.6.190.0040.03616.47
5.6.180.0110.02716.26
5.6.170.0100.03116.37
5.6.160.0100.02416.34
5.6.150.0080.03015.53
5.6.140.0080.02815.55
5.6.130.0060.02515.54
5.6.120.0110.01316.47
5.6.110.0030.02316.54
5.6.100.0090.03216.47
5.6.90.0030.03816.47
5.6.80.0070.03316.42
5.6.70.0000.01214.00
5.6.60.0050.01014.00
5.6.50.0060.00514.12
5.6.40.0060.00614.12
5.6.30.0030.00714.23
5.6.20.0090.00614.34
5.6.10.0080.00814.21
5.6.00.0040.00714.17
5.5.380.0100.00314.26
5.5.370.0060.00814.29
5.5.360.0090.00114.30
5.5.350.0160.02916.31
5.5.340.0070.03115.36
5.5.330.0060.02816.20
5.5.320.0070.02816.15
5.5.310.0060.02116.09
5.5.300.0040.03315.60
5.5.290.0050.01815.48
5.5.280.0020.03616.60
5.5.270.0070.02416.52
5.5.260.0080.03016.35
5.5.250.0020.02016.24
5.5.240.0100.01616.33
5.5.230.0030.01114.31
5.5.220.0090.00714.01
5.5.210.0000.01013.99
5.5.200.0020.00814.12
5.5.190.0080.00514.24
5.5.180.0090.00414.17
5.5.170.0070.00614.38
5.5.160.0030.01214.37
5.5.150.0060.00614.21
5.5.140.0060.00314.14
5.5.130.0060.00614.11
5.5.120.0090.00314.18
5.5.110.0060.00614.39
5.5.100.0030.00714.17
5.5.90.0050.01014.05
5.5.80.0070.00514.28
5.5.70.0040.00914.30
5.5.60.0040.01014.03
5.5.50.0030.01014.21
5.5.40.0020.01013.96
5.5.30.0020.00814.02
5.5.20.0080.00414.05
5.5.10.0040.00714.27
5.5.00.0000.01314.20

preferences:
47.23 ms | 401 KiB | 5 Q