3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $b = (unset) $a; var_dump($a, $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)
8.3.70.0090.00916.50
8.3.60.0090.00618.56
8.3.50.0080.01016.52
8.3.40.0090.00618.55
8.3.30.0110.00318.75
8.3.20.0050.00221.78
8.3.10.0050.00323.62
8.3.00.0040.00419.08
8.2.190.0000.01518.07
8.2.180.0130.00718.54
8.2.170.0110.00422.96
8.2.160.0040.01122.30
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0080.00020.39
8.2.120.0050.00226.35
8.2.110.0060.00322.19
8.2.100.0110.00017.78
8.2.90.0060.00318.96
8.2.80.0040.00417.97
8.2.70.0060.00317.38
8.2.60.0030.00617.68
8.2.50.0050.00318.10
8.2.40.0000.00720.20
8.2.30.0000.00720.84
8.2.20.0000.00717.80
8.2.10.0040.00417.94
8.2.00.0000.00717.98
8.1.280.0040.01125.92
8.1.270.0080.00023.99
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0090.00022.71
8.1.230.0110.00017.70
8.1.220.0030.00517.74
8.1.210.0000.00818.77
8.1.200.0060.00317.00
8.1.190.0000.00817.10
8.1.180.0090.00018.10
8.1.170.0040.00418.59
8.1.160.0040.00418.81
8.1.150.0060.00318.75
8.1.140.0000.00719.35
8.1.130.0030.00318.75
8.1.120.0030.00617.25
8.1.110.0040.00417.33
8.1.100.0000.00817.25
8.1.90.0060.00317.23
8.1.80.0000.00717.30
8.1.70.0000.00717.32
8.1.60.0060.00317.29
8.1.50.0030.00617.31
8.1.40.0040.00417.37
8.1.30.0030.00517.47
8.1.20.0060.00317.50
8.1.10.0000.00717.47
8.1.00.0000.00717.29
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0080.00018.32
8.0.270.0030.00317.02
8.0.260.0000.00816.80
8.0.250.0000.00616.92
8.0.240.0000.00716.83
8.0.230.0070.00016.86
8.0.220.0030.00316.82
8.0.210.0000.00716.77
8.0.200.0000.00816.83
8.0.190.0030.00616.78
8.0.180.0030.00616.91
8.0.170.0070.00016.75
8.0.160.0000.00716.81
8.0.150.0070.00016.72
8.0.140.0000.00716.66
8.0.130.0030.00313.25
8.0.120.0070.00316.78
8.0.110.0000.00716.68
8.0.100.0000.00716.86
8.0.90.0040.00416.85
8.0.80.0090.00616.88
8.0.70.0030.00416.79
8.0.60.0070.00016.81
8.0.50.0040.00416.64
8.0.30.0100.00816.85
8.0.20.0070.01217.40
8.0.10.0030.00317.00
8.0.00.0090.00916.63
7.4.330.0000.00515.55
7.4.320.0030.00316.55
7.4.300.0060.00016.56
7.4.290.0040.00716.51
7.4.280.0070.00316.56
7.4.270.0030.00316.61
7.4.260.0030.00313.26
7.4.250.0070.00016.55
7.4.240.0040.00416.43
7.4.230.0040.00416.32
7.4.220.0150.00416.65
7.4.210.0060.00916.59
7.4.200.0030.00316.59
7.4.160.0080.00716.43
7.4.150.0120.01217.40
7.4.140.0150.00517.86
7.4.130.0090.01216.38
7.4.120.0100.00916.48
7.4.110.0110.00716.46
7.4.100.0090.00816.16
7.4.90.0000.02016.54
7.4.80.0030.01519.39
7.4.70.0080.00816.43
7.4.60.0060.00916.47
7.4.50.0090.00616.37
7.4.40.0100.00616.52
7.4.30.0100.00716.54
7.4.00.0070.00814.84
7.3.330.0000.00513.08
7.3.320.0030.00313.16
7.3.310.0000.00616.22
7.3.300.0040.00416.24
7.3.290.0050.01116.24
7.3.280.0080.00716.25
7.3.270.0070.01017.40
7.3.260.0060.01116.27
7.3.250.0130.00516.24
7.3.240.0080.00916.28
7.3.230.0040.01516.14
7.3.210.0060.01016.24
7.3.200.0090.00916.63
7.3.190.0080.00816.25
7.3.180.0120.00616.22
7.3.170.0070.01016.33
7.3.160.0070.01016.20
7.3.120.0050.01014.92
7.3.110.0080.00814.79
7.3.100.0080.00614.83
7.3.90.0020.00814.67
7.3.80.0030.00914.69
7.3.70.0100.00314.76
7.3.60.0100.00714.82
7.3.50.0080.00314.63
7.3.40.0070.00714.60
7.3.30.0050.00614.77
7.3.20.0060.00816.35
7.3.10.0060.00516.51
7.3.00.0070.00716.55
7.2.330.0070.01716.29
7.2.320.0150.00316.59
7.2.310.0080.00816.38
7.2.300.0100.00716.50
7.2.290.0100.00716.52
7.2.250.0080.01114.73
7.2.240.0070.01314.82
7.2.230.0110.00314.71
7.2.220.0040.00714.75
7.2.210.0080.00414.78
7.2.200.0060.00914.76
7.2.190.0110.00514.96
7.2.180.0050.00714.72
7.2.170.0050.00814.95
7.2.60.0350.00416.31
7.2.50.0080.00516.89
7.2.00.0040.01219.48
7.1.330.0050.01015.69
7.1.320.0060.00615.79
7.1.310.0050.00915.77
7.1.300.0070.00715.61
7.1.290.0030.01015.71
7.1.280.0020.00915.78
7.1.270.0000.01315.82
7.1.260.0100.00315.77
7.1.200.0080.00415.48
7.1.70.0040.00417.02
7.1.60.0830.01332.89
7.1.50.0600.02332.93
7.1.40.0630.02332.54
7.1.30.0600.01732.32
7.1.20.0600.01332.83
7.1.10.0630.01014.68
7.1.00.0370.01714.68
7.0.200.0700.01314.85
7.0.190.0730.01314.52
7.0.180.0570.01314.26
7.0.170.0370.01314.30
7.0.160.0770.01314.27
7.0.150.0470.01014.25
7.0.140.0600.00714.47
7.0.130.0300.01714.66
7.0.120.0530.01314.68
7.0.110.0470.01314.59
7.0.100.0270.01014.21
7.0.90.0400.01014.36
7.0.80.0430.01014.27
7.0.70.0470.01314.22
7.0.60.0500.01014.05
7.0.50.0430.02014.69
7.0.40.0470.01014.64
7.0.30.0500.01714.60
7.0.20.0530.01014.46
7.0.10.0670.01014.75
7.0.00.0500.02014.58

preferences:
45.58 ms | 401 KiB | 5 Q