3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = ''; if (! isset($var) || $var) { echo "not empty or not defiend or a null value"; } else { echo "empty"; } echo "\ninstead\n"; if (empty($var)) { echo "not empty or not defiend or a null value"; } else { echo "empty"; }

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)
8.3.60.0030.01418.56
8.3.50.0070.01321.98
8.3.40.0090.00618.71
8.3.30.0070.00719.03
8.3.20.0080.00020.16
8.3.10.0040.00423.65
8.3.00.0050.00319.26
8.2.180.0070.00718.29
8.2.170.0040.01122.96
8.2.160.0030.01320.47
8.2.150.0020.00524.18
8.2.140.0150.00424.66
8.2.130.0040.00426.16
8.2.120.0110.00322.06
8.2.110.0000.00822.28
8.2.100.0030.00917.72
8.2.90.0000.00719.09
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0080.00018.03
8.2.50.0080.00018.07
8.2.40.0060.00318.34
8.2.30.0030.00518.04
8.2.20.0040.00417.71
8.2.10.0030.00718.16
8.2.00.0030.00617.70
8.1.280.0140.00325.92
8.1.270.0080.00023.88
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.79
8.1.230.0070.00419.09
8.1.220.0080.00017.79
8.1.210.0030.00618.77
8.1.200.0000.00917.23
8.1.190.0050.00317.38
8.1.180.0050.00318.10
8.1.170.0040.00418.59
8.1.160.0000.00722.00
8.1.150.0050.00318.63
8.1.140.0040.00417.39
8.1.130.0080.00017.86
8.1.120.0060.00317.50
8.1.110.0000.00717.48
8.1.100.0030.00317.44
8.1.90.0000.00717.50
8.1.80.0030.00317.41
8.1.70.0000.00717.39
8.1.60.0040.00417.59
8.1.50.0040.00417.56
8.1.40.0000.00917.56
8.1.30.0040.00417.57
8.1.20.0060.00317.47
8.1.10.0070.00017.50
8.1.00.0080.00017.45
8.0.300.0000.00718.77
8.0.290.0000.00817.16
8.0.280.0000.00718.43
8.0.270.0030.00317.18
8.0.260.0030.00316.66
8.0.250.0000.00616.84
8.0.240.0030.00616.96
8.0.230.0040.00416.96
8.0.220.0000.00716.96
8.0.210.0070.00016.79
8.0.200.0030.00316.77
8.0.190.0000.00816.84
8.0.180.0000.00716.80
8.0.170.0000.00816.95
8.0.160.0040.00416.95
8.0.150.0000.00716.80
8.0.140.0030.00616.88
8.0.130.0050.00313.35
8.0.120.0030.00616.74
8.0.110.0000.00716.89
8.0.100.0070.00016.83
8.0.90.0000.00716.73
8.0.80.0080.00516.86
8.0.70.0070.00016.77
8.0.60.0070.00016.77
8.0.50.0070.00016.94
8.0.30.0110.01217.15
8.0.20.0120.00617.40
8.0.10.0040.00416.93
8.0.00.0130.00516.68
7.4.330.0030.00315.06
7.4.320.0000.00616.43
7.4.300.0030.00316.57
7.4.290.0030.00716.51
7.4.280.0040.00416.43
7.4.270.0000.00716.39
7.4.260.0080.00016.48
7.4.250.0000.00716.38
7.4.240.0030.00316.56
7.4.230.0040.00416.70
7.4.220.0030.01416.56
7.4.210.0040.01116.53
7.4.200.0000.00716.60
7.4.190.0070.00016.38
7.4.160.0080.00816.52
7.4.150.0170.00017.40
7.4.140.0090.00917.86
7.4.130.0100.00716.45
7.4.120.0160.00216.43
7.4.110.0130.00316.48
7.4.100.0130.00316.34
7.4.90.0110.00816.41
7.4.80.0090.01319.39
7.4.70.0150.00716.49
7.4.60.0070.01016.50
7.4.50.0000.00516.52
7.4.40.0160.00022.77
7.4.30.0150.00616.36
7.4.00.0030.01014.68
7.3.330.0020.00212.94
7.3.320.0000.00613.11
7.3.310.0070.00016.05
7.3.300.0030.00316.24
7.3.290.0040.01116.16
7.3.280.0120.00716.21
7.3.270.0100.00717.40
7.3.260.0080.00816.35
7.3.250.0090.00816.18
7.3.240.0110.00616.30
7.3.230.0060.01216.39
7.3.210.0110.00616.32
7.3.200.0000.01719.39
7.3.190.0040.01816.56
7.3.180.0050.01116.43
7.3.170.0060.01116.37
7.3.160.0120.00416.44
7.3.120.0140.00314.88
7.2.330.0120.00616.54
7.2.320.0130.01316.46
7.2.310.0130.00616.20
7.2.300.0060.01216.26
7.2.290.0090.01316.34
7.2.00.0000.01319.10
7.1.100.0000.01118.11
7.1.70.0000.00816.74
7.1.60.0100.01319.33
7.1.50.0060.01616.80
7.1.00.0070.07322.45
7.0.200.0040.00416.73
7.0.140.0030.07321.99
7.0.60.0170.08019.87
7.0.50.0030.04017.80
7.0.40.0200.04320.30
7.0.30.0430.06720.04
7.0.20.0300.08320.17
7.0.10.0030.05020.17
7.0.00.0030.06020.04
5.6.280.0070.07021.06
5.6.210.0100.04020.66
5.6.200.0070.07718.17
5.6.190.0000.05320.61
5.6.180.3830.03720.64
5.6.170.0300.07020.71
5.6.160.0000.09020.46
5.6.150.0030.08018.21
5.6.140.0030.05018.11
5.6.130.0000.06018.18
5.6.120.0130.07020.96
5.6.110.0070.04021.11
5.6.100.0030.06021.00
5.6.90.0030.04320.99
5.6.80.0070.04020.39
5.6.70.4300.04020.35
5.5.350.0100.08720.38
5.5.340.0070.08017.88
5.5.330.0030.06020.06
5.5.320.0370.07720.18
5.5.310.0170.06720.25
5.5.300.0030.07317.98
5.5.290.0130.07317.91
5.5.280.0170.03320.79
5.5.270.0000.04320.95
5.5.260.0100.07720.94
5.5.250.0070.07320.48
5.5.240.0200.07320.22
5.4.450.0200.05319.61
5.4.440.0800.06319.54
5.4.430.0600.06019.54
5.4.420.0870.05019.54
5.4.410.0670.06019.41
5.4.400.1170.04719.13
5.4.390.0300.05318.90
5.4.380.0300.05018.60
5.4.370.0200.05318.69
5.4.360.0130.05718.57
5.4.350.0270.05718.72
5.4.340.0170.05318.65
5.4.320.0080.03812.45
5.4.310.0080.04412.45
5.4.300.0080.04012.45
5.4.290.0050.03812.45
5.4.280.0060.03512.34
5.4.270.0080.04012.34
5.4.260.0070.04212.34
5.4.250.0040.04412.35
5.4.240.0040.03912.34
5.4.230.0070.04812.34
5.4.220.0080.04012.34
5.4.210.0090.04012.34
5.4.200.0100.04312.34
5.4.190.0390.08312.33
5.4.180.0450.08212.34
5.4.170.0110.04712.34
5.4.160.0180.04012.34
5.4.150.0170.04412.34
5.4.140.0170.04612.02
5.4.130.0180.04412.00
5.4.120.0200.04211.96
5.4.110.0230.03911.96
5.4.100.0190.04011.96
5.4.90.0120.04611.96
5.4.80.0320.05711.96
5.4.70.0140.04311.95
5.4.60.0160.04411.96
5.4.50.0190.04111.96
5.4.40.0190.04011.95
5.4.30.0130.04711.95
5.4.20.0180.04711.95
5.4.10.0120.04711.94
5.4.00.0280.09011.43
5.3.290.0090.04112.80
5.3.280.0060.04812.71
5.3.270.0200.04712.72
5.3.260.0150.04612.72
5.3.250.0170.05012.72
5.3.240.0120.04812.72
5.3.230.0210.05012.71
5.3.220.0190.04512.68
5.3.210.0400.08612.68
5.3.200.0170.04312.68
5.3.190.0190.04412.68
5.3.180.0220.04112.67
5.3.170.0220.07312.67
5.3.160.0330.09512.67
5.3.150.0200.04412.67
5.3.140.0180.04212.66
5.3.130.0180.04212.65
5.3.120.0180.04412.66
5.3.110.0190.04412.66
5.3.100.0430.07912.12
5.3.90.0110.05112.09
5.3.80.0190.04212.08
5.3.70.0120.04712.07
5.3.60.0140.04612.06
5.3.50.0200.04212.00
5.3.40.0130.04912.00
5.3.30.0400.07911.96
5.3.20.0160.04211.73
5.3.10.0120.04511.69
5.3.00.0150.04611.67
5.2.170.0150.0369.18
5.2.160.0150.0409.18
5.2.150.0190.0479.18
5.2.140.0200.0349.18
5.2.130.0380.0819.14
5.2.120.0180.0319.14
5.2.110.0190.0329.14
5.2.100.0100.0419.14
5.2.90.0130.0359.14
5.2.80.0160.0359.13
5.2.70.0110.0389.13
5.2.60.0130.0349.08
5.2.50.0140.0369.05
5.2.40.0130.0379.04
5.2.30.0260.0569.00
5.2.20.0120.0419.00
5.2.10.0100.0418.92
5.2.00.0140.0338.78
5.1.60.0100.0308.07
5.1.50.0140.0328.06
5.1.40.0170.0318.05
5.1.30.0180.0348.39
5.1.20.0080.0408.43
5.1.10.0190.0298.14
5.1.00.0140.0328.14
5.0.50.0070.0296.62
5.0.40.0230.0736.47
5.0.30.0100.0366.29
5.0.20.0080.0246.27
5.0.10.0120.0226.24
5.0.00.0080.0376.23
4.4.90.0100.0184.78
4.4.80.0080.0184.75
4.4.70.0160.0424.75
4.4.60.0080.0204.76
4.4.50.0050.0214.77
4.4.40.0260.0594.71
4.4.30.0400.0784.76
4.4.20.0070.0234.84
4.4.10.0120.0164.85
4.4.00.0070.0314.76
4.3.110.0070.0194.67
4.3.100.0100.0164.66
4.3.90.0090.0174.63
4.3.80.0180.0794.58
4.3.70.0070.0174.63
4.3.60.0120.0144.63
4.3.50.0120.0144.63
4.3.40.0100.0304.53
4.3.30.0070.0193.29
4.3.20.0070.0183.27
4.3.10.0030.0213.24
4.3.00.0030.0207.78

preferences:
43.37 ms | 401 KiB | 5 Q