3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = (unset)'a'; var_dump('' == $a and 'a' == $a and '' === (string)$a and 'a' === (string)$a);

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)
8.3.60.0130.00718.43
8.3.50.0320.00721.08
8.3.40.0140.00018.57
8.3.30.0120.00318.59
8.3.20.0040.00420.04
8.3.10.0090.00021.60
8.3.00.0050.00319.56
8.2.180.0090.00918.06
8.2.170.0120.00322.96
8.2.160.0100.00320.14
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0060.00317.46
8.2.110.0040.00421.04
8.2.100.0090.00317.25
8.2.90.0050.00319.09
8.2.80.0030.00617.97
8.2.70.0030.00517.23
8.2.60.0030.00617.66
8.2.50.0000.00918.07
8.2.40.0040.00420.95
8.2.30.0030.00619.76
8.2.20.0050.00317.61
8.2.10.0030.00617.99
8.2.00.0000.00717.80
8.1.280.0160.00325.92
8.1.270.0030.00520.20
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0090.00021.12
8.1.230.0040.00817.42
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0070.00317.23
8.1.190.0000.00817.13
8.1.180.0050.00218.10
8.1.170.0040.00418.52
8.1.160.0070.00022.13
8.1.150.0000.00718.59
8.1.140.0040.00417.26
8.1.130.0030.00317.52
8.1.120.0030.00517.34
8.1.110.0040.00417.35
8.1.100.0050.00217.36
8.1.90.0040.00417.37
8.1.80.0030.00617.30
8.1.70.0070.00017.36
8.1.60.0030.00617.45
8.1.50.0000.00817.37
8.1.40.0040.00417.34
8.1.30.0030.00517.42
8.1.20.0040.00417.38
8.1.10.0050.00317.31
8.1.00.0040.00417.30
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0030.00318.31
8.0.270.0070.00017.09
8.0.260.0000.00717.07
8.0.250.0040.00416.88
8.0.240.0050.00316.74
8.0.230.0030.00316.75
8.0.220.0040.00416.86
8.0.210.0050.00316.82
8.0.200.0000.00716.83
8.0.190.0050.00316.86
8.0.180.0070.00016.81
8.0.170.0000.00916.80
8.0.160.0050.00316.88
8.0.150.0070.00016.71
8.0.140.0000.00716.70
8.0.130.0060.00013.33
8.0.120.0050.00316.69
8.0.110.0000.00716.81
8.0.100.0070.00016.68
8.0.90.0050.00316.88
8.0.80.0030.01516.70
8.0.70.0050.00316.88
8.0.60.0040.00316.66
8.0.50.0000.00716.75
8.0.30.0140.00916.98
8.0.20.0100.00917.40
8.0.10.0000.00817.02
8.0.00.0090.00816.61
7.4.330.0020.00215.08
7.4.320.0060.00316.37
7.4.300.0000.00716.48
7.4.290.0000.00716.58
7.4.280.0060.00316.48
7.4.270.0030.00316.53
7.4.260.0070.00016.52
7.4.250.0000.00716.57
7.4.240.0030.00316.43
7.4.230.0030.00316.63
7.4.220.0070.01116.45
7.4.210.0110.00316.56
7.4.200.0000.00716.50
7.4.160.0070.01016.30
7.4.150.0030.01517.40
7.4.140.0100.00917.86
7.4.130.0090.00716.67
7.4.120.0100.00916.55
7.4.110.0100.00716.40
7.4.100.0120.00916.77
7.4.90.0100.00616.64
7.4.80.0100.01019.39
7.4.70.0140.00916.70
7.4.60.0080.00816.59
7.4.50.0050.00316.42
7.4.40.0100.01016.48
7.4.30.0100.01016.64
7.4.00.0060.01014.84
7.3.330.0020.00213.00
7.3.320.0000.00513.23
7.3.310.0030.00316.36
7.3.300.0030.00316.17
7.3.290.0090.00616.24
7.3.280.0110.00416.26
7.3.270.0160.00817.40
7.3.260.0060.00916.37
7.3.250.0070.01016.35
7.3.240.0090.00916.46
7.3.230.0070.01516.39
7.3.210.0060.01116.27
7.3.200.0110.00619.39
7.3.190.0110.00616.47
7.3.180.0140.00316.41
7.3.170.0060.01016.44
7.3.160.0070.01016.30
7.3.120.0100.00714.96
7.3.110.0040.01414.61
7.3.100.0070.00714.33
7.3.90.0000.00914.95
7.3.80.0040.00414.69
7.3.70.0030.01014.91
7.3.60.0080.00414.84
7.3.50.0000.00814.84
7.3.40.0040.01114.86
7.3.30.0040.00714.81
7.3.20.0040.00916.57
7.3.10.0060.00616.46
7.3.00.0070.00716.51
7.2.330.0140.00316.59
7.2.320.0060.01116.23
7.2.310.0140.00416.69
7.2.300.0100.01016.36
7.2.290.0030.01416.64
7.2.250.0180.00314.89
7.2.240.0030.01315.09
7.2.230.0000.01015.07
7.2.220.0060.00915.08
7.2.210.0100.00615.18
7.2.200.0100.00615.15
7.2.190.0120.00314.96
7.2.180.0030.01414.75
7.2.170.0070.01114.93
7.2.60.0060.00616.91
7.2.00.0040.00719.20
7.1.330.0040.01415.64
7.1.320.0040.01115.88
7.1.310.0030.01015.79
7.1.300.0040.01115.72
7.1.290.0090.00015.52
7.1.280.0060.00615.82
7.1.270.0030.00915.78
7.1.260.0060.00615.82
7.1.200.0040.00715.71
7.1.100.0030.00718.20
7.1.70.0040.00416.94
7.1.60.0040.02120.03
7.1.50.0170.02034.59
7.1.00.0130.06722.43
7.0.200.0050.00216.80
7.0.60.0070.03719.78
7.0.50.0070.03717.66
7.0.40.0070.05019.90
7.0.30.0500.05720.12
7.0.20.0300.08720.12
7.0.10.0170.05320.30
7.0.00.0070.05020.09
5.6.280.0000.06721.10
5.6.210.0100.06320.46
5.6.200.0030.05018.22
5.6.190.0130.08020.34
5.6.180.0230.03320.36
5.6.170.0300.05020.33
5.6.160.0030.04720.52
5.6.150.0070.07718.22
5.6.140.0070.05718.11
5.6.130.0070.06318.16
5.6.120.0170.07320.98
5.6.110.0100.06721.01
5.6.100.0130.04320.99
5.6.90.0030.04020.96
5.6.80.0100.05720.50
5.6.70.4470.03720.49
5.5.350.0070.03020.48
5.5.340.0030.08017.95
5.5.330.0100.06020.40
5.5.320.0330.07320.46
5.5.310.0230.07720.29
5.5.300.0170.03317.95
5.5.290.0030.04017.95
5.5.280.0100.07020.86
5.5.270.0000.10020.94
5.5.260.0030.04320.86
5.5.250.0070.07020.68
5.5.240.0000.08720.25
5.4.450.0230.04319.18
5.4.440.0100.04719.11
5.4.430.0270.06719.45
5.4.420.0230.03319.11
5.4.410.0200.03719.28
5.4.400.0200.03718.79
5.4.390.0300.02718.79
5.4.380.0200.03318.79
5.4.370.0170.03719.24
5.4.360.0170.03719.09
5.4.350.0230.03019.13
5.4.340.0230.03019.18
5.4.320.0170.03719.05
5.4.310.0230.03319.03
5.4.300.0200.03319.13
5.4.290.0270.03719.15
5.4.280.0230.04719.07
5.4.270.0370.03318.78
5.4.260.0170.04719.24
5.4.250.0270.07719.12
5.4.240.0170.05018.91
5.4.230.0300.06318.91
5.4.220.0270.04719.07
5.4.210.0270.05019.24
5.4.200.0270.06018.87
5.4.190.0270.04018.79
5.4.180.0270.05019.07
5.4.170.0300.06319.08
5.4.160.0270.04318.88
5.4.150.0230.05318.77
5.4.140.0230.05016.18
5.4.130.0370.06016.40
5.4.120.0330.04016.25
5.4.110.0470.05016.21
5.4.100.0230.05316.49
5.4.90.0270.03716.43
5.4.80.0330.06016.44

preferences:
44.46 ms | 401 KiB | 5 Q