3v4l.org

run code in 300+ PHP versions simultaneously
<?php $aLoopValue = array('', ' ' , false, true, array(), null, '0', 0, 0.0, '\0'); foreach ($aLoopValue as $val) { echo 'aa'.var_dump(isset($val)).' / '.var_dump(empty($val)).' / '.var_dump(is_null($val)).chr(10); }

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)
8.3.60.0120.00618.30
8.3.50.0140.00621.21
8.3.40.0080.00818.79
8.3.30.0130.00719.09
8.3.20.0000.00820.30
8.3.10.0070.00021.73
8.3.00.0080.00017.25
8.2.180.0140.00718.09
8.2.170.0070.00722.96
8.2.160.0130.00320.39
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0090.00019.36
8.2.110.0030.00622.27
8.2.100.0110.00017.91
8.2.90.0000.00819.23
8.2.80.0030.00617.97
8.2.70.0040.00417.63
8.2.60.0000.00917.93
8.2.50.0030.00618.07
8.2.40.0040.00419.89
8.2.30.0000.00817.94
8.2.20.0000.00717.73
8.2.10.0000.00718.07
8.2.00.0000.00817.93
8.1.280.0070.01025.92
8.1.270.0090.00021.98
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0000.01020.81
8.1.230.0090.00317.70
8.1.220.0040.00417.79
8.1.210.0050.00318.77
8.1.200.0030.00717.22
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0040.00418.59
8.1.160.0030.00518.84
8.1.150.0030.00318.88
8.1.140.0030.00517.43
8.1.130.0030.00317.82
8.1.120.0030.00717.54
8.1.110.0070.00017.33
8.1.100.0000.00717.47
8.1.90.0040.00417.34
8.1.80.0040.00417.47
8.1.70.0000.00717.34
8.1.60.0050.00517.56
8.1.50.0040.00417.52
8.1.40.0000.00817.47
8.1.30.0090.00017.55
8.1.20.0000.00717.58
8.1.10.0000.00817.35
8.1.00.0000.00717.49
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.35
8.0.270.0030.00317.30
8.0.260.0030.00317.27
8.0.250.0070.00416.94
8.0.240.0050.00316.88
8.0.230.0080.00016.83
8.0.220.0000.00816.89
8.0.210.0000.00716.85
8.0.200.0000.00616.94
8.0.190.0030.00516.83
8.0.180.0040.00416.92
8.0.170.0050.00316.93
8.0.160.0040.00416.79
8.0.150.0000.00716.87
8.0.140.0050.00216.79
8.0.130.0050.00013.34
8.0.120.0000.00916.75
8.0.110.0000.00716.75
8.0.100.0070.00016.84
8.0.90.0020.00516.77
8.0.80.0120.00616.82
8.0.70.0050.00316.79
8.0.60.0040.00416.84
8.0.50.0040.00416.73
8.0.30.0130.01317.15
8.0.20.0170.00517.40
8.0.10.0040.00417.04
8.0.00.0090.00916.58
7.4.330.0000.00515.14
7.4.320.0030.00316.59
7.4.300.0060.00016.48
7.4.290.0030.00316.52
7.4.280.0040.00416.60
7.4.270.0030.00316.60
7.4.260.0030.00316.59
7.4.250.0000.00816.37
7.4.240.0030.00316.48
7.4.230.0030.00316.49
7.4.220.0120.00616.54
7.4.210.0060.01116.53
7.4.200.0070.00016.66
7.4.160.0060.00916.46
7.4.150.0040.02217.40
7.4.140.0110.01117.86
7.4.130.0130.01016.50
7.4.120.0120.00716.44
7.4.110.0150.00916.59
7.4.100.0170.00716.46
7.4.90.0080.01216.57
7.4.80.0080.00819.39
7.4.70.0130.00616.37
7.4.60.0090.00916.43
7.4.50.0040.00416.45
7.4.40.0080.00816.40
7.4.30.0140.00716.55
7.4.00.0040.01515.16
7.3.330.0000.00513.19
7.3.320.0110.00512.97
7.3.310.0030.00316.09
7.3.300.0000.00716.05
7.3.290.0000.00716.21
7.3.280.0110.00916.28
7.3.270.0100.01617.40
7.3.260.0140.00316.27
7.3.250.0130.00416.38
7.3.240.0170.00016.55
7.3.230.0130.00716.50
7.3.210.0150.00916.57
7.3.200.0040.01519.39
7.3.190.0160.00016.43
7.3.180.0030.01316.39
7.3.170.0140.00416.43
7.3.160.0100.00716.25
7.2.330.0110.00616.69
7.2.320.0120.00416.61
7.2.310.0120.00916.58
7.2.300.0060.00916.62
7.2.290.0130.00316.35
7.2.110.0100.00716.46
7.2.60.0060.00616.89
7.1.200.0080.00815.75
7.1.100.0700.00715.91
7.1.70.0000.00717.11
7.1.60.0040.01519.50
7.1.50.0030.02216.90
7.1.00.0030.07722.51
7.0.200.0030.00516.75
7.0.60.0100.05019.99
7.0.50.0000.04717.86
7.0.40.0030.04320.24
7.0.30.0470.07320.09
7.0.20.0300.03320.01
7.0.10.0030.04720.09
7.0.00.0070.05020.29
5.6.280.0030.07320.76
5.6.210.0030.04020.68
5.6.200.0030.08718.12
5.6.190.0070.06020.64
5.6.180.3170.04320.49
5.6.170.0270.05720.48
5.6.160.0100.08320.50
5.6.150.0030.05318.22
5.6.140.0130.05318.04
5.6.130.0030.04018.15
5.6.120.0130.04320.98
5.6.110.0070.08320.98
5.6.100.0130.07321.11
5.6.90.0000.04721.01
5.6.80.0130.07020.40
5.5.350.0270.03320.38
5.5.340.0100.04718.00
5.5.330.0130.07320.21
5.5.320.0300.07320.32
5.5.310.0200.05020.23
5.5.300.0030.07718.02
5.5.290.0070.08318.00
5.5.280.0030.04020.84
5.5.270.0030.07320.74
5.5.260.0030.09020.79
5.5.250.0070.05020.59
5.5.240.0030.07320.25
5.4.450.0070.05319.41
5.4.440.0100.04019.24
5.4.430.0130.04319.56
5.4.420.0100.06019.25
5.4.410.0130.06318.93
5.4.400.0130.05018.68
5.4.390.0130.05018.59
5.4.380.0170.05018.77
5.4.370.0100.05318.69
5.4.360.0170.05318.68
5.4.350.0100.05318.58
5.4.340.0100.05318.74
5.4.320.0070.05718.57
5.4.310.0130.04718.73
5.4.300.0100.05018.70
5.4.290.0130.05018.54
5.4.280.0200.04318.70
5.4.270.0230.04018.66
5.4.260.0070.05718.76
5.4.250.0030.06018.69
5.4.240.0100.05318.69
5.4.230.0170.04318.52
5.4.220.0030.06018.57
5.4.210.0130.05318.66
5.4.200.0130.04716.55
5.4.190.0030.06018.76
5.4.180.0200.04318.63
5.4.170.0130.05018.47
5.4.160.0070.05318.71
5.4.150.0170.04718.46
5.4.140.0270.03716.21
5.4.130.0100.05016.22
5.4.120.0070.05316.08
5.4.110.0130.04716.11
5.4.100.0100.05016.09
5.4.90.0070.05316.07
5.4.80.0130.04716.14
5.4.70.0100.05316.02
5.4.60.0070.05316.29
5.4.50.0030.05316.11
5.4.40.0070.05316.09
5.4.30.0000.05716.27
5.4.20.0130.04716.11
5.4.10.0130.04316.27
5.4.00.0130.04315.52
5.3.290.0170.04714.55
5.3.280.0030.06014.59
5.3.270.0070.05714.53
5.3.260.0000.06014.64
5.3.250.0130.05014.50
5.3.240.0200.06714.56
5.3.230.0200.04314.60
5.3.220.0230.04314.64
5.3.210.0170.04714.48
5.3.200.0130.04714.56
5.3.190.0130.04714.59
5.3.180.0130.05014.47
5.3.170.0100.05014.47
5.3.160.0130.04714.54
5.3.150.0170.04314.65
5.3.140.0170.05014.54
5.3.130.0130.05014.46
5.3.120.0100.05314.54
5.3.110.0070.06014.58
5.3.100.0070.05314.08
5.3.90.0200.06014.00
5.3.80.0100.05013.99
5.3.70.0130.04714.00
5.3.60.0030.05714.00
5.3.50.0100.05013.89
5.3.40.0070.05313.94
5.3.30.0030.05313.94
5.3.20.0130.05013.79
5.3.10.0170.04713.75
5.3.00.0130.06013.62
5.2.170.0000.06711.14
5.2.160.0030.04311.20
5.2.150.0130.03711.15
5.2.140.0030.04711.21
5.2.130.0170.04711.10
5.2.120.0100.04011.14
5.2.110.0070.04011.13
5.2.100.0100.03711.14
5.2.90.0130.03311.07
5.2.80.0000.05011.13
5.2.70.0070.04711.25
5.2.60.0100.04311.20
5.2.50.0030.04311.00
5.2.40.0030.04711.13
5.2.30.0070.04311.03
5.2.20.0100.04011.02
5.2.10.0170.03011.01
5.2.00.0100.05010.71
5.1.60.0000.05310.01
5.1.50.0030.05010.05
5.1.40.0070.0439.93
5.1.30.0100.04710.37
5.1.20.0100.04710.46
5.1.10.0030.05310.08
5.1.00.0100.04710.18
5.0.50.0030.0408.54
5.0.40.0070.0378.46
5.0.30.0000.0508.29
5.0.20.0030.0308.38
5.0.10.0100.0238.29
5.0.00.0030.0438.20
4.4.90.0070.0205.87
4.4.80.0030.0205.91
4.4.70.0070.0205.88
4.4.60.0000.0235.84
4.4.50.0030.0205.93
4.4.40.0070.0375.86
4.4.30.0030.0205.88
4.4.20.0000.0275.95
4.4.10.0030.0235.87
4.4.00.0000.0375.90
4.3.110.0000.0235.77
4.3.100.0070.0175.84
4.3.90.0000.0235.88
4.3.80.0000.0375.88
4.3.70.0030.0205.77
4.3.60.0000.0235.79
4.3.50.0000.0335.78
4.3.40.0030.0435.76
4.3.30.0070.0274.55
4.3.20.0030.0234.62
4.3.10.0000.0234.58
4.3.00.0070.00715.57

preferences:
86.82 ms | 401 KiB | 5 Q