3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'A'; //$var = ''; //$var = null; //$var = 0; if (! isset($var) || $var) { echo "set default"; //"not empty or not defiend or a null value"; } else { echo "not default"; //"empty"; } if (empty($var)) { echo "set default"; } else { echo "not default"; }

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)
8.3.60.0080.00618.31
8.3.50.0100.00921.93
8.3.40.0060.00918.81
8.3.30.0000.01418.96
8.3.20.0070.00020.01
8.3.10.0060.00323.48
8.3.00.0000.00822.14
8.2.180.0090.00616.38
8.2.170.0100.00322.96
8.2.160.0100.00322.07
8.2.150.0000.00724.18
8.2.140.0030.00624.66
8.2.130.0050.00326.16
8.2.120.0040.00419.23
8.2.110.0070.00320.97
8.2.100.0070.00417.84
8.2.90.0040.00419.07
8.2.80.0000.00917.97
8.2.70.0030.00618.04
8.2.60.0070.00018.04
8.2.50.0000.00818.10
8.2.40.0000.00720.42
8.2.30.0070.00318.00
8.2.20.0070.00017.50
8.2.10.0070.00017.54
8.2.00.0100.00017.72
8.1.280.0040.01125.92
8.1.270.0060.00323.96
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00621.15
8.1.230.0080.00317.83
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0000.00917.25
8.1.190.0030.00617.23
8.1.180.0050.00318.10
8.1.170.0000.00818.66
8.1.160.0040.00422.03
8.1.150.0060.00318.55
8.1.140.0070.00017.37
8.1.130.0070.00017.81
8.1.120.0100.00017.45
8.1.110.0040.00417.44
8.1.100.0040.00417.41
8.1.90.0040.00417.49
8.1.80.0030.00317.48
8.1.70.0030.00317.34
8.1.60.0040.00417.53
8.1.50.0050.00317.52
8.1.40.0040.00417.50
8.1.30.0090.00017.45
8.1.20.0030.00617.66
8.1.10.0040.00417.48
8.1.00.0030.00517.48
8.0.300.0000.00818.77
8.0.290.0070.00016.75
8.0.280.0000.00718.38
8.0.270.0030.00317.29
8.0.260.0030.00316.73
8.0.250.0040.00416.94
8.0.240.0000.00716.92
8.0.230.0000.00716.94
8.0.220.0000.00716.85
8.0.210.0070.00016.91
8.0.200.0060.00016.77
8.0.190.0040.00416.95
8.0.180.0070.00416.87
8.0.170.0080.00016.94
8.0.160.0040.00416.93
8.0.150.0000.00716.84
8.0.140.0000.00716.74
8.0.130.0050.00313.32
8.0.120.0030.00616.84
8.0.110.0000.00716.77
8.0.100.0050.00216.74
8.0.90.0000.00716.92
8.0.80.0130.00716.89
8.0.70.0000.00716.91
8.0.60.0040.00416.75
8.0.50.0040.00416.86
8.0.30.0050.01417.13
8.0.20.0110.01017.40
8.0.10.0000.00816.85
8.0.00.0140.00516.74
7.4.330.0000.00515.00
7.4.320.0060.00016.57
7.4.300.0030.00316.54
7.4.290.0030.00316.58
7.4.280.0030.00316.62
7.4.270.0100.00016.38
7.4.260.0000.00716.57
7.4.250.0040.00416.43
7.4.240.0030.00416.57
7.4.230.0000.00616.39
7.4.220.0060.01516.59
7.4.210.0090.00616.52
7.4.200.0030.00316.45
7.4.190.0000.00716.35
7.4.160.0140.00316.36
7.4.150.0090.00917.40
7.4.140.0100.00917.86
7.4.130.0090.01316.55
7.4.120.0110.00716.43
7.4.110.0100.00716.39
7.4.100.0090.00916.30
7.4.90.0130.00316.57
7.4.80.0120.01016.27
7.4.70.0120.00816.61
7.4.60.0000.01716.52
7.4.50.0000.00916.33
7.4.40.0090.00922.77
7.4.30.0000.02116.66
7.4.00.0070.00715.02
7.3.330.0000.00513.03
7.3.320.0050.00012.91
7.3.310.0000.00616.04
7.3.300.0030.00316.18
7.3.290.0100.00616.24
7.3.280.0100.01016.20
7.3.270.0130.00417.40
7.3.260.0000.02016.16
7.3.250.0100.00716.34
7.3.240.0130.00316.49
7.3.230.0060.01016.39
7.3.210.0040.01216.26
7.3.200.0110.00919.39
7.3.190.0070.01016.30
7.3.180.0070.01316.19
7.3.170.0080.00816.43
7.3.160.0060.00916.53
7.3.120.0090.00614.72
7.2.330.0120.00616.61
7.2.320.0130.00616.57
7.2.310.0140.00316.55
7.2.300.0090.00616.27
7.2.290.0100.01016.33
7.2.60.0060.00616.75
7.2.00.0040.00818.69
7.1.200.0140.00015.81
7.1.100.0030.01418.21
7.1.70.0040.00816.90
7.1.60.0100.01019.24
7.1.50.0070.01816.64
7.1.00.0030.07722.48
7.0.200.0090.00316.38
7.0.140.0100.07022.00
7.0.100.0400.07320.00
7.0.90.0270.06319.96
7.0.80.0370.07319.91
7.0.70.0130.06019.85
7.0.60.0000.05019.92
7.0.50.0030.04720.36
7.0.40.0000.05019.99
7.0.30.0070.07720.13
7.0.20.0030.04320.17
7.0.10.0030.04020.04
7.0.00.0030.05020.08
5.6.280.0030.07321.11
5.6.250.0070.08320.71
5.6.240.0070.08320.63
5.6.230.0130.07020.57
5.6.220.0030.04720.54
5.6.210.0070.04320.55
5.6.200.0030.04321.08
5.6.190.0000.04021.13
5.6.180.0070.04321.01
5.6.170.0000.04720.91
5.6.160.0200.06721.04
5.6.150.0100.04721.01
5.6.140.0070.04721.06
5.6.130.0070.04021.08
5.6.120.0070.04021.09
5.6.110.0070.04020.91
5.6.100.0030.04720.93
5.6.90.0130.04721.00
5.6.80.0070.03720.45
5.6.70.0000.05020.43
5.6.60.0030.04720.41
5.6.50.0070.03720.48
5.6.40.0100.03320.36
5.6.30.0000.04320.37
5.6.20.0070.03320.36
5.6.10.0030.04020.36
5.6.00.0100.03320.38
5.5.380.0170.06720.40
5.5.370.0200.06720.45
5.5.360.0130.08020.33
5.5.350.0070.05020.45
5.5.340.0070.07720.86
5.5.330.0030.05020.82
5.5.320.0030.04320.64
5.5.310.0130.06020.77
5.5.300.0000.04320.82
5.5.290.0000.04720.85
5.5.280.0030.04020.63
5.5.270.0030.04320.71
5.5.260.0070.03720.89
5.5.250.0070.04020.70
5.5.240.0070.03720.26
5.5.230.0000.04320.15
5.5.220.0030.04020.14
5.5.210.0070.04320.22
5.5.200.0100.03720.27
5.5.190.0070.04020.07
5.5.180.0000.04020.20
5.5.160.0070.05720.12
5.5.150.0070.04719.98
5.5.140.0030.03720.22
5.5.130.0130.07019.96
5.5.120.0100.07720.25
5.5.110.0130.07020.16
5.5.100.0100.08020.02
5.5.90.0130.07720.00
5.5.80.0130.06320.08
5.5.70.0070.06720.08
5.5.60.0100.07720.07
5.5.50.0130.07020.13
5.5.40.0130.07320.05
5.5.30.0030.08320.12
5.5.20.0170.06720.12
5.5.10.0100.08019.96
5.5.00.0130.05020.00
5.4.450.0070.07719.27
5.4.440.0170.02319.22
5.4.430.0000.03719.27
5.4.420.0030.04319.39
5.4.410.0100.03019.16
5.4.400.0030.03319.03
5.4.390.0030.04019.14
5.4.380.0070.03719.03
5.4.370.0030.03719.04
5.4.360.0030.03718.98
5.4.350.0100.02719.03
5.4.340.0030.04319.23
5.4.320.0070.03719.14
5.4.310.0030.04019.03
5.4.300.0100.06019.04
5.4.290.0100.06718.90
5.4.280.0030.07718.94
5.4.270.0100.04018.78
5.4.260.0130.06319.07
5.4.250.0130.04319.05
5.4.240.0100.07719.04
5.4.230.0100.07318.89
5.4.220.0170.07018.95
5.4.210.0100.06018.80
5.4.200.0030.08319.14
5.4.190.0070.07319.02
5.4.180.0070.07718.88
5.4.170.0070.07719.13
5.4.160.0130.05319.05
5.4.150.0130.07319.02
5.4.140.0070.04716.33
5.4.130.0130.06716.10
5.4.120.0070.07316.36
5.4.110.0030.07016.31
5.4.100.0130.06316.43
5.4.90.0030.08016.21
5.4.80.0070.03716.27
5.4.70.0070.07016.24
5.4.60.0170.06716.28
5.4.50.0030.07316.30
5.4.40.0070.06716.46
5.4.30.0070.04016.33
5.4.20.0070.06316.27
5.4.10.0070.04016.41
5.4.00.0000.06315.71
5.3.290.0030.04714.57
5.3.280.0000.05314.57
5.3.270.0070.05014.56
5.3.260.0070.07714.46
5.3.250.0100.07014.57
5.3.240.0100.07314.61
5.3.230.0030.07714.53
5.3.220.0130.06714.53
5.3.210.0100.07014.42
5.3.200.0070.07014.54
5.3.190.0030.05314.40
5.3.180.0030.04014.38
5.3.170.0100.07014.50
5.3.160.0070.07014.52
5.3.150.0170.06314.38
5.3.140.0030.03714.41
5.3.130.0230.06014.40
5.3.120.0030.06314.54
5.3.110.0200.05714.53
5.3.100.0030.06314.02
5.3.90.0070.06713.99
5.3.80.0070.06713.77
5.3.70.0070.05713.97
5.3.60.0070.07013.77
5.3.50.0070.04313.70
5.3.40.0000.07713.80
5.3.30.0100.06713.90
5.3.20.0030.07713.60
5.3.10.0100.03313.66
5.3.00.0100.04013.54
5.2.170.0030.07011.13
5.2.160.0070.05710.96
5.2.150.0070.05710.96
5.2.140.0030.06010.98
5.2.130.0070.06311.12
5.2.120.0170.05311.06
5.2.110.0030.05311.05
5.2.100.0030.06710.89
5.2.90.0070.05711.09
5.2.80.0070.03311.01
5.2.70.0030.04711.07
5.2.60.0030.05010.91
5.2.50.0030.03311.01
5.2.40.0100.04011.06
5.2.30.0100.05310.96
5.2.20.0070.05310.94
5.2.10.0000.05310.91
5.2.00.0070.05710.79
5.1.60.0070.02310.03
5.1.50.0000.03010.05
5.1.40.0070.0539.97
5.1.30.0070.05310.23
5.1.20.0030.05310.27
5.1.10.0030.04710.09
5.1.00.0070.05010.05
5.0.50.0000.0508.42
5.0.40.0030.0478.47
5.0.30.0070.0578.20
5.0.20.0030.0408.27
5.0.10.0000.0478.22
5.0.00.0030.0608.23
4.4.90.0000.0338.18
4.4.80.0130.0078.18
4.4.70.0000.0378.18
4.4.60.0000.0308.18
4.4.50.0070.0238.18
4.4.40.0030.0508.18
4.4.30.0000.0338.18
4.4.20.0000.0378.18
4.4.10.0000.0378.18
4.4.00.0030.0538.18
4.3.110.0030.0338.18
4.3.100.0030.0378.18
4.3.90.0030.0338.18
4.3.80.0030.0508.18
4.3.70.0000.0338.18
4.3.60.0000.0338.18
4.3.50.0030.0338.18
4.3.40.0000.0438.18
4.3.30.0000.0378.18
4.3.20.0000.0408.18
4.3.10.0000.0308.18
4.3.00.0070.0308.18

preferences:
50.85 ms | 401 KiB | 5 Q