3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Fails { private $dir; public function __construct($dir) { $this->dir = @opendir($dir); // Different resource everytime } } var_dump(new Fails('/tmp') == new Fails('/tmp')); // Actual failure var_dump(opendir('/tmp') == opendir('/tmp')); // This works, because no member variable with a different value is assigned class Works { private $dir; public function __construct($dir) { $this->dir = $dir; } } var_dump(new Works('/tmp') == new Works('/tmp'));

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)
8.3.60.0110.00418.25
8.3.50.0140.00722.88
8.3.40.0140.00018.70
8.3.30.0000.01418.88
8.3.20.0040.00420.21
8.3.10.0050.00323.49
8.3.00.0040.00419.38
8.2.180.0140.00418.41
8.2.170.0140.00322.96
8.2.160.0090.00620.43
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0040.01126.16
8.2.120.0080.00020.92
8.2.110.0080.00321.06
8.2.100.0000.01118.16
8.2.90.0040.00419.25
8.2.80.0030.00617.97
8.2.70.0080.00017.63
8.2.60.0040.00417.93
8.2.50.0050.00318.07
8.2.40.0000.00819.94
8.2.30.0040.00418.14
8.2.20.0040.00417.61
8.2.10.0040.00418.00
8.2.00.0040.00417.73
8.1.280.0120.00625.92
8.1.270.0000.00923.85
8.1.260.0050.00326.35
8.1.250.0050.00228.09
8.1.240.0030.00621.36
8.1.230.0040.00719.07
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0100.00017.36
8.1.190.0040.00417.25
8.1.180.0040.00418.10
8.1.170.0000.00918.50
8.1.160.0000.00822.14
8.1.150.0020.00518.91
8.1.140.0000.00717.48
8.1.130.0000.00817.87
8.1.120.0000.00717.50
8.1.110.0020.00517.56
8.1.100.0070.00017.56
8.1.90.0000.00717.49
8.1.80.0000.00817.54
8.1.70.0000.00817.39
8.1.60.0030.00517.61
8.1.50.0040.00417.60
8.1.40.0030.00617.56
8.1.30.0080.00017.63
8.1.20.0040.00417.69
8.1.10.0040.00417.61
8.1.00.0040.00417.61
8.0.300.0060.00318.77
8.0.290.0000.00716.75
8.0.280.0050.00318.60
8.0.270.0030.00317.32
8.0.260.0000.00817.28
8.0.250.0000.00717.09
8.0.240.0050.00216.93
8.0.230.0030.00317.04
8.0.220.0030.00316.93
8.0.210.0050.00316.87
8.0.200.0040.00417.04
8.0.190.0070.00016.90
8.0.180.0000.00816.86
8.0.170.0080.00017.00
8.0.160.0040.00416.81
8.0.150.0000.00716.88
8.0.140.0070.00016.93
8.0.130.0000.00713.31
8.0.120.0030.00315.19
8.0.110.0040.00415.18
8.0.100.0070.00115.16
8.0.90.0050.00215.16
8.0.80.0050.00715.17
8.0.70.0040.00415.10
8.0.60.0010.00615.13
8.0.50.0010.00615.17
8.0.30.0090.00815.82
8.0.20.0110.00816.07
8.0.10.0040.00415.32
8.0.00.0090.00615.67
7.4.330.0030.00315.08
7.4.320.0000.00616.47
7.4.300.0060.00316.44
7.4.290.0070.00016.51
7.4.280.0060.00316.62
7.4.270.0030.00516.54
7.4.260.0000.01016.58
7.4.250.0040.00414.85
7.4.240.0030.00415.44
7.4.230.0020.00514.93
7.4.220.0090.00714.94
7.4.210.0030.01014.97
7.4.200.0040.00314.79
7.4.190.0070.00013.43
7.4.180.0030.00313.30
7.4.160.0040.00714.99
7.4.150.0050.00715.32
7.4.140.0120.00416.34
7.4.130.0060.00815.60
7.4.120.0070.00615.48
7.4.110.0070.00614.96
7.4.100.0090.00414.85
7.4.90.0090.00714.94
7.4.80.0080.01016.29
7.4.70.0080.01014.94
7.4.60.0030.00914.87
7.4.50.0050.00414.90
7.4.40.0060.00714.91
7.4.30.0090.00514.67
7.4.20.0000.01013.14
7.4.10.0110.00413.20
7.4.00.0070.00614.34
7.3.330.0000.00613.25
7.3.320.0100.00413.31
7.3.310.0040.00814.86
7.3.300.0080.00314.85
7.3.290.0110.00714.85
7.3.280.0090.00815.52
7.3.270.0170.00315.32
7.3.260.0110.00615.01
7.3.250.0120.00515.40
7.3.240.0130.00314.93
7.3.230.0090.00714.86
7.3.220.0090.00713.06
7.3.210.0080.00714.77
7.3.200.0130.00316.32
7.3.190.0100.01014.79
7.3.180.0100.00514.71
7.3.170.0090.00814.84
7.3.160.0130.00414.67
7.3.150.0130.00213.23
7.3.140.0110.00413.21
7.3.130.0090.00613.23
7.3.120.0100.00814.15
7.3.110.0120.00614.29
7.3.100.0050.01014.33
7.3.90.0070.00514.28
7.3.80.0100.00714.21
7.3.70.0100.00514.31
7.3.60.0090.00614.28
7.3.50.0090.00514.47
7.3.40.0040.00814.41
7.3.30.0070.00814.44
7.3.20.0080.00516.13
7.3.10.0080.00516.18
7.3.00.0080.00616.19
7.2.340.0100.00313.33
7.2.330.0150.00514.85
7.2.320.0070.00814.92
7.2.310.0060.01015.03
7.2.300.0110.00514.99
7.2.290.0100.00814.89
7.2.280.0070.00713.21
7.2.270.0080.00713.37
7.2.260.0100.00313.40
7.2.250.0040.01014.10
7.2.240.0080.00914.40
7.2.230.0070.00714.54
7.2.220.0060.00714.47
7.2.210.0120.00214.56
7.2.200.0050.01014.48
7.2.190.0100.00714.43
7.2.180.0110.00314.47
7.2.170.0080.00714.36
7.2.160.0090.00614.11
7.2.150.0100.00615.91
7.2.140.0130.00216.15
7.2.130.0060.00815.98
7.2.120.0100.00716.05
7.2.110.0100.00416.14
7.2.100.0080.00616.13
7.2.90.0090.00516.11
7.2.80.0110.00316.18
7.2.70.0090.00416.21
7.2.60.0060.00716.09
7.2.50.0050.01016.15
7.2.40.0060.00916.09
7.2.30.0050.00816.07
7.2.20.0070.00516.11
7.2.10.0070.00616.12
7.2.00.0060.00817.17
7.1.330.0080.00715.27
7.1.320.0060.00515.41
7.1.310.0080.00515.11
7.1.300.0050.00815.26
7.1.290.0060.00815.32
7.1.280.0090.00615.28
7.1.270.0090.00315.21
7.1.260.0080.00715.29
7.1.250.0080.00515.08
7.1.240.0120.00014.42
7.1.230.0110.00014.23
7.1.220.0060.00614.31
7.1.210.0080.00514.26
7.1.200.0090.00314.30
7.1.190.0090.00214.42
7.1.180.0080.00414.30
7.1.170.0130.00014.15
7.1.160.0070.00514.29
7.1.150.0000.01214.29
7.1.140.0100.00314.16
7.1.130.0040.00814.19
7.1.120.0060.00614.33
7.1.110.0090.00314.31
7.1.100.0070.00516.16
7.1.90.0060.00614.25
7.1.80.0080.00414.31
7.1.70.0060.00415.76
7.1.60.0070.01016.91
7.1.50.0080.01015.74
7.1.40.0090.00414.25
7.1.30.0060.00614.37
7.1.20.0120.00014.30
7.1.10.0090.00314.31
7.1.00.0080.03818.30
7.0.330.0120.00014.33
7.0.320.0080.00314.20
7.0.310.0120.00014.13
7.0.300.0120.00014.25
7.0.290.0120.00014.14
7.0.280.0130.00014.32
7.0.270.0080.00414.14
7.0.260.0080.00414.13
7.0.250.0080.00414.30
7.0.240.0060.00614.12
7.0.230.0070.00514.41
7.0.220.0080.00414.22
7.0.210.0120.00014.26
7.0.200.0030.00715.31
7.0.190.0040.00814.09
7.0.180.0040.00814.20
7.0.170.0000.01214.14
7.0.160.0060.00614.28
7.0.150.0120.00014.16
7.0.140.0070.03717.97
7.0.130.0080.00614.31
7.0.120.0120.00014.14
7.0.110.0120.00014.08
7.0.100.0100.00214.15
7.0.90.0110.00014.06
7.0.80.0120.00014.11
7.0.70.0090.00314.22
7.0.60.0080.04217.03
7.0.50.0110.02716.01
7.0.40.0090.04517.22
7.0.30.0280.02717.16
7.0.20.0170.03217.00
7.0.10.0090.02317.02
7.0.00.0070.02217.17
5.6.400.0080.00412.99
5.6.390.0060.00612.99
5.6.380.0110.00012.66
5.6.370.0040.00812.99
5.6.360.0080.00412.87
5.6.350.0070.00412.72
5.6.340.0120.00012.86
5.6.330.0090.00312.91
5.6.320.0060.00612.86
5.6.310.0000.01112.70
5.6.300.0110.00012.89
5.6.290.0120.00012.66
5.6.280.0050.03816.82
5.6.270.0070.00412.86
5.6.260.0070.00412.64
5.6.250.0090.00212.84
5.6.240.0080.00412.91
5.6.230.0070.00412.85
5.6.220.0110.00012.95
5.6.210.0060.03916.68
5.6.200.0110.01815.55
5.6.190.0090.04016.64
5.6.180.0250.04216.75
5.6.170.0220.03716.62
5.6.160.0080.04416.74
5.6.150.0060.02515.50
5.6.140.0070.03215.62
5.6.130.0080.02815.59
5.6.120.0050.02416.83
5.6.110.0050.04717.04
5.6.100.0120.04016.84
5.6.90.0030.04716.88
5.6.80.0130.01716.63
5.6.70.0070.00412.90
5.6.60.0030.00913.07
5.6.50.0060.00612.94
5.6.40.0060.00412.84
5.6.30.0100.00012.70
5.6.20.0050.00512.68
5.6.10.0110.00012.65
5.6.00.0110.00012.80
5.5.380.0080.00312.83
5.5.370.0120.00012.97
5.5.360.0120.00012.87
5.5.350.0160.04216.54
5.5.340.0060.03515.38
5.5.330.0050.02416.53
5.5.320.0200.04016.50
5.5.310.0150.02416.55
5.5.300.0090.03415.31
5.5.290.0120.03015.37
5.5.280.0100.04016.83
5.5.270.0090.04316.94
5.5.260.0080.04516.78
5.5.250.0090.02916.87
5.5.240.0130.02216.52
5.5.230.0130.00012.76
5.5.220.0060.00612.58
5.5.210.0080.00412.79
5.5.200.0060.00612.85
5.5.190.0090.00312.93
5.5.180.0070.00412.78
5.5.170.0040.00812.93
5.5.160.0080.00412.66
5.5.150.0090.00312.87
5.5.140.0080.00412.50
5.5.130.0130.00012.50
5.5.120.0080.00412.54
5.5.110.0100.00412.50
5.5.100.0110.00012.79
5.5.90.0100.00212.62
5.5.80.0080.00412.85
5.5.70.0070.00412.44
5.5.60.0080.00512.61
5.5.50.0120.00012.92
5.5.40.0100.00212.64
5.5.30.0080.00412.85
5.5.20.0080.00412.92
5.5.10.0060.00612.64
5.5.00.0060.00612.77
5.4.450.0190.02116.01
5.4.440.0240.02316.13
5.4.430.0190.02015.97
5.4.420.0210.02115.99
5.4.410.0180.02016.17
5.4.400.0190.02515.90
5.4.390.0390.02215.86
5.4.380.0290.03215.71
5.4.370.0280.02915.75
5.4.360.0260.03615.63
5.4.350.0300.03415.62
5.4.340.0270.02715.71
5.4.330.0120.00012.70
5.4.320.0080.01912.63
5.4.310.0080.02112.70
5.4.300.0090.02212.65
5.4.290.0050.02112.69
5.4.280.0110.01912.67
5.4.270.0060.01912.68
5.4.260.0050.02412.43
5.4.250.0090.02112.49
5.4.240.0050.02612.47
5.4.230.0060.02112.35
5.4.220.0100.01612.37
5.4.210.0070.01812.47
5.4.200.0080.01812.34
5.4.190.0020.02412.52
5.4.180.0060.02212.52
5.4.170.0040.02212.48
5.4.160.0100.01812.48
5.4.150.0060.02212.37
5.4.140.0060.02012.37
5.4.130.0060.01912.34
5.4.120.0050.02012.39
5.4.110.0020.02312.30
5.4.100.0060.01912.35
5.4.90.0060.02112.30
5.4.80.0060.02512.35
5.4.70.0070.01812.33
5.4.60.0070.01712.45
5.4.50.0050.02012.34
5.4.40.0060.02012.31
5.4.30.0060.02012.37
5.4.20.0080.02112.36
5.4.10.0070.01912.27
5.4.00.0050.02012.06
5.3.290.0080.02112.90
5.3.280.0050.02412.87
5.3.270.0070.02012.86
5.3.260.0050.02212.94
5.3.250.0060.02012.90
5.3.240.0080.02012.80
5.3.230.0060.02112.76
5.3.220.0090.01812.85
5.3.210.0060.02312.83
5.3.200.0080.02012.80
5.3.190.0070.02012.77
5.3.180.0050.02212.80
5.3.170.0060.02012.94
5.3.160.0060.02012.81
5.3.150.0050.02412.81
5.3.140.0050.02212.88
5.3.130.0090.01912.88
5.3.120.0060.02112.86
5.3.110.0090.01812.91
5.3.100.0060.02012.49
5.3.90.0090.01612.60
5.3.80.0080.02012.54
5.3.70.0050.02012.49
5.3.60.0070.02012.47
5.3.50.0060.02112.52
5.3.40.0060.02012.52
5.3.30.0040.02312.42
5.3.20.0080.02012.33
5.3.10.0090.01612.33
5.3.00.0080.01812.16
5.2.170.0070.01610.58
5.2.160.0040.01710.63
5.2.150.0030.01910.58
5.2.140.0040.02010.65
5.2.130.0050.01610.62
5.2.120.0040.01710.64
5.2.110.0090.01210.65
5.2.100.0090.01310.52
5.2.90.0050.01710.50
5.2.80.0060.01610.41
5.2.70.0040.01710.55
5.2.60.0050.01610.34
5.2.50.0060.01810.49
5.2.40.0040.01810.45
5.2.30.0040.01810.42
5.2.20.0070.01810.47
5.2.10.0020.01910.39
5.2.00.0070.01710.26
5.1.60.0040.0149.54
5.1.50.0070.0139.48
5.1.40.0030.0179.67
5.1.30.0030.0159.87
5.1.20.0040.0159.80
5.1.10.0060.0149.55
5.1.00.0050.0149.58
5.0.50.0050.0148.58
5.0.40.0050.0108.50
5.0.30.0010.0198.41
5.0.20.0010.0138.40
5.0.10.0010.0148.38
5.0.00.0050.0158.38
4.4.90.0020.0097.63
4.4.80.0030.0077.62
4.4.70.0010.0117.62
4.4.60.0020.0107.63
4.4.50.0050.0077.63
4.4.40.0020.0167.60
4.4.30.0040.0097.63
4.4.20.0050.0087.67
4.4.10.0010.0107.67
4.4.00.0020.0137.63
4.3.110.0030.0087.58
4.3.100.0020.0107.58
4.3.90.0020.0097.56
4.3.80.0050.0107.54
4.3.70.0010.0097.56
4.3.60.0020.0087.56
4.3.50.0010.0107.56
4.3.40.0020.0167.51
4.3.30.0020.0126.89
4.3.20.0020.0126.88
4.3.10.0020.0106.87
4.3.00.0000.00812.68

preferences:
52.81 ms | 401 KiB | 5 Q