3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); class testclass { var $dd = ""; } $test = new testclass(); if (isset($test->dd[0])){ echo "(A) TRUE \n"; }else{ echo "(A) FALSE \n"; } if (is_array($test->dd) && isset($test->dd[0])){ echo "(B) TRUE \n"; }else{ echo "(B) FALSE \n"; }

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)
8.3.60.0060.00918.16
8.3.50.0070.01416.43
8.3.40.0100.00718.46
8.3.30.0110.00418.66
8.3.20.0000.00818.81
8.3.10.0060.00318.60
8.3.00.0060.00319.38
8.2.180.0090.00625.92
8.2.170.0110.00419.04
8.2.160.0030.01022.96
8.2.150.0090.00025.66
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0050.00320.59
8.2.110.0060.00321.02
8.2.100.0080.00417.84
8.2.90.0050.00317.63
8.2.80.0000.00818.86
8.2.70.0060.00617.49
8.2.60.0000.00818.05
8.2.50.0030.00518.07
8.2.40.0030.00519.95
8.2.30.0060.00317.67
8.2.20.0070.00417.67
8.2.10.0020.00517.79
8.2.00.0040.00417.75
8.1.280.0150.00625.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0070.00319.21
8.1.230.0090.00319.49
8.1.220.0000.00917.79
8.1.210.0050.00318.77
8.1.200.0000.01017.35
8.1.190.0040.00417.22
8.1.180.0040.00418.10
8.1.170.0050.00318.79
8.1.160.0000.00819.06
8.1.150.0040.00418.60
8.1.140.0000.00717.41
8.1.130.0070.00017.76
8.1.120.0030.00517.49
8.1.110.0020.00517.34
8.1.100.0000.00717.49
8.1.90.0000.00717.36
8.1.80.0030.00317.36
8.1.70.0050.00317.44
8.1.60.0040.00717.59
8.1.50.0080.00017.46
8.1.40.0040.00417.56
8.1.30.0020.00517.70
8.1.20.0060.00617.62
8.1.10.0030.00617.56
8.1.00.0050.00317.39
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0000.00718.61
8.0.270.0030.00317.25
8.0.260.0000.00716.73
8.0.250.0000.00816.98
8.0.240.0040.00416.86
8.0.230.0030.00316.99
8.0.220.0000.00716.93
8.0.210.0000.00716.89
8.0.200.0040.00416.83
8.0.190.0040.00416.87
8.0.180.0050.00316.80
8.0.170.0090.00016.84
8.0.160.0000.00716.88
8.0.150.0000.00916.69
8.0.140.0060.00316.73
8.0.130.0030.00313.28
8.0.120.0030.00616.84
8.0.110.0030.00316.68
8.0.100.0000.00816.93
8.0.90.0080.00016.72
8.0.80.0080.01316.88
8.0.70.0000.00716.77
8.0.60.0050.00316.83
8.0.50.0040.00416.93
8.0.30.0110.00616.77
8.0.20.0100.00817.20
8.0.10.0000.00716.96
8.0.00.0070.01116.71
7.4.330.0000.00512.96
7.4.320.0030.00316.63
7.4.300.0060.00016.49
7.4.290.0050.00216.62
7.4.280.0030.00516.48
7.4.270.0040.00316.50
7.4.260.0030.00313.23
7.4.250.0070.00016.49
7.4.240.0040.00416.41
7.4.230.0000.00816.50
7.4.220.0120.00316.62
7.4.210.0070.00716.68
7.4.200.0040.00416.70
7.4.190.0080.00016.74
7.4.160.0060.00916.38
7.4.150.0100.00716.46
7.4.140.0150.00216.57
7.4.130.0150.00316.40
7.4.120.0120.00316.52
7.4.110.0090.00916.54
7.4.100.0140.00316.57
7.4.90.0090.00816.61
7.4.80.0150.00519.39
7.4.70.0070.00716.59
7.4.60.0120.00416.37
7.4.50.0100.00016.20
7.4.40.0090.00616.47
7.4.30.0080.00816.51
7.4.00.0030.01314.74
7.3.330.0000.00613.03
7.3.320.0030.00313.09
7.3.310.0000.00716.20
7.3.300.0060.00016.25
7.3.290.0060.01016.19
7.3.280.0080.01216.24
7.3.270.0070.01016.31
7.3.260.0070.01016.46
7.3.250.0080.01216.46
7.3.240.0130.00316.20
7.3.230.0130.01016.24
7.3.210.0130.00616.31
7.3.200.0030.01316.37
7.3.190.0130.01016.32
7.3.180.0130.00316.38
7.3.170.0080.00916.47
7.3.160.0180.00416.36
7.3.120.0090.00315.02
7.2.330.0160.00616.74
7.2.320.0120.00916.47
7.2.310.0110.00716.41
7.2.300.0070.01016.52
7.2.290.0080.00816.45
7.2.00.0060.00619.18
7.1.200.0090.00915.67
7.1.100.0030.01218.11
7.1.70.0040.00416.81
7.1.60.0070.00417.24
7.1.50.0040.01816.90
7.1.00.0100.06722.50
7.0.200.0060.00316.62
7.0.140.0030.07321.96
7.0.120.0070.07022.17
7.0.60.0100.07720.04
7.0.50.0100.06317.96
7.0.40.0030.04320.18
7.0.30.0300.08320.23
7.0.20.0170.04720.09
7.0.10.0170.07720.23
7.0.00.0030.09320.12
5.6.280.0100.06321.13
5.6.210.0200.06320.63
5.6.200.0070.06718.19
5.6.190.0000.06020.39
5.6.180.0570.04720.60
5.6.170.0370.06020.54
5.6.160.0070.07020.46
5.6.150.0000.09018.19
5.6.140.0130.07018.15
5.6.130.0100.08018.30
5.6.120.0000.09020.96
5.6.110.0100.07321.02
5.6.100.0100.08021.01
5.6.90.0070.08720.99
5.6.80.0070.08320.28
5.5.350.0300.05020.41
5.5.340.0000.05017.95
5.5.330.0100.08020.39
5.5.320.0100.04720.30
5.5.310.0300.07720.26
5.5.300.0030.07717.98
5.5.290.0070.07717.93
5.5.280.0300.07320.86
5.5.270.0070.04320.79
5.5.260.0100.06320.86
5.5.250.0000.05720.68
5.5.240.0000.08020.26
5.4.450.0230.08019.18
5.4.440.0470.03719.41
5.4.430.0230.05319.31
5.4.420.0370.05319.18
5.4.410.0330.06719.39
5.4.400.0300.05019.16
5.4.390.0230.03719.14
5.4.380.0400.06019.07
5.4.370.0270.07019.26
5.4.360.0270.07319.05
5.4.350.0300.06319.21
5.4.340.0330.05019.16
5.4.320.0270.03319.24
5.4.310.0300.07018.87
5.4.300.0370.06319.08
5.4.290.0270.05019.19
5.4.280.0330.07318.99
5.4.270.0270.05019.17
5.4.260.0270.06318.99
5.4.250.0300.07318.93
5.4.240.0230.04718.98
5.4.230.0270.03719.06
5.4.220.0200.04319.16
5.4.210.0170.04319.16
5.4.200.0270.07319.21
5.4.190.0200.04018.98
5.4.180.0270.07019.05
5.4.170.0300.05319.01
5.4.160.0300.05719.02
5.4.150.0300.07019.06
5.4.140.0300.06316.67
5.4.130.0170.03716.50
5.4.120.0230.06716.31
5.4.110.0300.05316.40
5.4.100.0230.05716.19
5.4.90.0270.06316.35
5.4.80.0170.04016.52
5.4.70.0200.04716.49
5.4.60.0230.06316.53
5.4.50.0300.07016.53
5.4.40.0130.05316.36
5.4.30.0270.06316.23
5.4.20.0330.05316.55
5.4.10.0230.04316.23
5.4.00.0200.05315.85
5.3.290.0300.04714.77
5.3.280.0230.04314.70
5.3.270.0200.04314.57
5.3.260.0200.06014.51
5.3.250.0330.06014.59
5.3.240.0130.05014.57
5.3.230.0230.05014.66
5.3.220.0270.06014.56
5.3.210.0200.06014.58
5.3.200.0230.05714.48
5.3.190.0230.04014.64
5.3.180.0170.07714.46
5.3.170.0200.04714.55
5.3.160.0200.06014.46
5.3.150.0170.08014.58
5.3.140.0270.05314.55
5.3.130.0200.05714.54
5.3.120.0230.04714.45
5.3.110.0200.07014.71
5.3.100.0270.07314.10
5.3.90.0200.03714.03
5.3.80.0330.06313.99
5.3.70.0170.05713.91
5.3.60.0300.04714.00
5.3.50.0200.03313.87
5.3.40.0170.06013.87
5.3.30.0230.04014.12
5.3.20.0230.04713.61
5.3.10.0230.03313.57
5.3.00.0130.03713.68
5.2.170.0130.03011.20
5.2.160.0200.03011.05
5.2.150.0200.02311.23
5.2.140.0130.02711.07
5.2.130.0130.02711.18
5.2.120.0130.02711.10
5.2.110.0200.02011.18
5.2.100.0200.02011.00
5.2.90.0130.02711.07
5.2.80.0100.03011.01
5.2.70.0100.03011.02
5.2.60.0100.03011.02
5.2.50.0130.02710.92
5.2.40.0070.03311.21
5.2.30.0070.03010.89
5.2.20.0130.02310.86
5.2.10.0100.02710.82
5.2.00.0100.02710.66
5.1.60.0100.02310.05
5.1.50.0070.02710.22
5.1.40.0100.0239.85
5.1.30.0100.02710.34
5.1.20.0100.02710.43
5.1.10.0030.0309.98
5.1.00.0070.0309.98
5.0.50.0070.0209.81
5.0.40.0100.0179.81
5.0.30.0100.0279.81
5.0.20.0070.0179.81
5.0.10.0070.0179.81
5.0.00.0030.0339.81
4.4.90.0000.0209.81
4.4.80.0070.0239.81
4.4.70.0000.0209.81
4.4.60.0070.0179.81
4.4.50.0030.0209.81
4.4.40.0070.0209.81
4.4.30.0030.0209.81
4.4.20.0030.0179.81
4.4.10.0030.0179.81
4.4.00.0100.0239.81
4.3.110.0070.0139.81
4.3.100.0000.0209.81
4.3.90.0070.0179.81
4.3.80.0030.0279.81
4.3.70.0030.0209.81
4.3.60.0030.0209.81
4.3.50.0030.0239.81
4.3.40.0070.0239.81
4.3.30.0000.0179.81
4.3.20.0030.0139.81
4.3.10.0030.0139.81
4.3.00.0000.0179.81

preferences:
57.32 ms | 401 KiB | 5 Q