3v4l.org

run code in 300+ PHP versions simultaneously
<?php print "Empty array\n"; $map_row = []; var_dump(isset($map_row['rollback_action']) && $map_row['rollback_action'] == 0); var_dump(array_key_exists('rollback_action', $map_row) && $map_row['rollback_action'] == 0); print "\n\nrollback_action = 0\n"; $map_row = ['rollback_action' => 0]; var_dump(isset($map_row['rollback_action']) && $map_row['rollback_action'] == 0); var_dump(array_key_exists('rollback_action', $map_row) && $map_row['rollback_action'] == 0); print "\n\nrollback_action = NULL\n"; $map_row = ['rollback_action' => NULL]; var_dump(isset($map_row['rollback_action']) && $map_row['rollback_action'] == 0); var_dump(array_key_exists('rollback_action', $map_row) && $map_row['rollback_action'] == 0); print "\n\map_row = FALSE\n"; $map_row = FALSE; var_dump(isset($map_row['rollback_action']) && $map_row['rollback_action'] == 0); var_dump(array_key_exists('rollback_action', $map_row) && $map_row['rollback_action'] == 0);

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)
8.3.70.0180.00416.75
8.3.60.0140.00016.88
8.3.50.0120.00317.90
8.3.40.0060.01018.95
8.3.30.0120.00318.89
8.3.20.0050.00324.18
8.3.10.0040.00424.66
8.3.00.0000.00826.16
8.2.190.0090.01216.88
8.2.180.0140.00425.92
8.2.170.0110.00419.24
8.2.160.0070.01022.96
8.2.150.0080.00025.66
8.2.140.0050.00324.66
8.2.130.0060.00326.16
8.2.120.0050.00326.16
8.2.110.0060.00322.26
8.2.100.0060.00617.91
8.2.90.0080.00017.73
8.2.80.0040.00418.92
8.2.70.0000.00817.63
8.2.60.0050.00317.75
8.2.50.0000.00817.75
8.2.40.0030.00517.75
8.2.30.0080.00017.92
8.2.20.0000.00719.60
8.2.10.0040.00418.93
8.2.00.0000.00719.27
8.1.280.0080.00625.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0030.01728.09
8.1.240.0030.01522.04
8.1.230.0060.00622.11
8.1.220.0000.00917.79
8.1.210.0030.00518.77
8.1.200.0060.00317.48
8.1.190.0050.00317.35
8.1.180.0000.00818.10
8.1.170.0030.00517.62
8.1.160.0040.00418.83
8.1.150.0040.00418.67
8.1.140.0040.00417.38
8.1.130.0030.00318.79
8.1.120.0030.00717.36
8.1.110.0000.00717.53
8.1.100.0000.00717.48
8.1.90.0030.00517.50
8.1.80.0030.00617.44
8.1.70.0070.00017.39
8.1.60.0000.00917.49
8.1.50.0000.00817.56
8.1.40.0040.00417.57
8.1.30.0030.00617.64
8.1.20.0000.00817.59
8.1.10.0060.00317.61
8.1.00.0040.00417.38
8.0.300.0040.00418.77
8.0.290.0050.00316.75
8.0.280.0050.00218.48
8.0.270.0030.00316.88
8.0.260.0000.00818.35
8.0.250.0030.00317.06
8.0.240.0020.00516.98
8.0.230.0040.00417.03
8.0.220.0030.00316.93
8.0.210.0050.00216.85
8.0.200.0020.00517.02
8.0.190.0080.00017.00
8.0.180.0060.00316.89
8.0.170.0030.00617.02
8.0.160.0050.00316.95
8.0.150.0040.00416.80
8.0.140.0000.00716.96
8.0.130.0040.00413.45
8.0.120.0040.00417.00
8.0.110.0040.00417.04
8.0.100.0070.00016.89
8.0.90.0000.00816.89
8.0.80.0050.00316.88
8.0.70.0030.00316.96
8.0.60.0070.00017.03
8.0.50.0030.00316.87
8.0.30.0040.00416.89
8.0.20.0030.00516.88
8.0.10.0030.00517.02
8.0.00.0040.00417.18
7.4.330.0000.00615.55
7.4.320.0070.00016.60
7.4.300.0000.00616.53
7.4.290.0000.00716.46
7.4.280.0070.00016.45
7.4.270.0040.00416.68
7.4.260.0030.00313.24
7.4.250.0050.00216.54
7.4.240.0070.00016.62
7.4.230.0080.00016.54
7.4.220.0000.00716.63
7.4.210.0050.00316.39
7.4.200.0040.00416.60
7.4.190.0040.00416.74
7.4.180.0040.00416.58
7.4.160.0030.00316.44
7.4.150.0000.00716.55
7.4.140.0030.00316.61
7.4.130.0070.00016.34
7.4.120.0000.00716.59
7.4.110.0030.00316.36
7.4.100.0070.00016.44
7.4.90.0030.00316.47
7.4.80.0030.00316.48
7.4.70.0060.00316.36
7.4.60.0000.00816.45
7.4.50.0050.00316.46
7.4.40.0040.00416.40
7.4.30.0070.00016.50
7.4.20.0040.00416.57
7.4.10.0000.00716.48
7.4.00.0070.00016.53
7.3.330.0040.00416.20
7.3.320.0030.00313.16
7.3.310.0030.00316.46
7.3.300.0000.00616.23
7.3.290.0070.00016.26
7.3.280.0000.00716.18
7.3.270.0030.00316.16
7.3.260.0030.00316.33
7.3.250.0000.00716.19
7.3.240.0040.00416.29
7.3.230.0040.00416.41
7.3.220.0000.00716.13
7.3.210.0000.00616.22
7.3.200.0000.00716.15
7.3.190.0080.00016.11
7.3.180.0070.00016.27
7.3.170.0000.00716.27
7.3.160.0080.00016.19
7.3.150.0070.00016.35
7.3.140.0050.00216.23
7.3.130.0030.00316.23
7.3.120.0070.00016.19
7.3.110.0030.00316.22
7.3.100.0040.00416.27
7.3.90.0070.00016.50
7.3.80.0070.00016.21
7.3.70.0000.00716.16
7.3.60.0070.00016.22
7.3.50.0000.00616.44
7.3.40.0030.00316.23
7.3.30.0070.00016.40
7.3.20.0030.00318.19
7.3.10.0050.00218.10
7.3.00.0000.00818.14

preferences:
62.54 ms | 401 KiB | 5 Q