3v4l.org

run code in 300+ PHP versions simultaneously
<?php //$var = 'A'; $var = ''; //$var = null; //$var = 0; if (! isset($var) || $var) { echo "set default"; //"not empty or not defiend or a null value"; } else { echo "not default"; //"empty"; } if (isset($var) && 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)
8.3.60.0110.00918.30
8.3.50.0110.00821.07
8.3.40.0070.00718.63
8.3.30.0120.00318.91
8.3.20.0070.00020.16
8.3.10.0040.00421.97
8.3.00.0040.00422.42
8.2.180.0070.01418.29
8.2.170.0100.01022.96
8.2.160.0100.00319.25
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0170.00026.16
8.2.120.0000.00819.48
8.2.110.0110.00019.39
8.2.100.0040.00717.78
8.2.90.0050.00319.08
8.2.80.0000.00817.97
8.2.70.0050.00317.63
8.2.60.0030.00617.93
8.2.50.0060.00318.07
8.2.40.0000.00819.89
8.2.30.0000.00718.07
8.2.20.0040.00417.65
8.2.10.0040.00417.70
8.2.00.0040.00417.70
8.1.280.0080.00825.92
8.1.270.0080.00022.05
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0110.00022.61
8.1.230.0060.00621.04
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00717.47
8.1.190.0040.00417.23
8.1.180.0040.00418.65
8.1.170.0000.00818.58
8.1.160.0040.00422.02
8.1.150.0000.00718.57
8.1.140.0000.00717.53
8.1.130.0030.00317.71
8.1.120.0000.00717.49
8.1.110.0040.00417.51
8.1.100.0030.00517.47
8.1.90.0030.00517.54
8.1.80.0000.00717.46
8.1.70.0030.00317.37
8.1.60.0030.00617.58
8.1.50.0040.00417.42
8.1.40.0040.00417.45
8.1.30.0000.00717.55
8.1.20.0000.00917.55
8.1.10.0070.00017.44
8.1.00.0070.00017.52
8.0.300.0000.00718.77
8.0.290.0050.00316.63
8.0.280.0030.00318.46
8.0.270.0000.00817.31
8.0.260.0040.00416.73
8.0.250.0000.00716.98
8.0.240.0070.00016.95
8.0.230.0070.00016.86
8.0.220.0000.00716.79
8.0.210.0000.00716.92
8.0.200.0040.00416.93
8.0.190.0000.00817.00
8.0.180.0000.00816.95
8.0.170.0070.00016.90
8.0.160.0030.00516.80
8.0.150.0000.00816.80
8.0.140.0040.00316.76
8.0.130.0000.00513.37
8.0.120.0040.00416.86
8.0.110.0040.00416.93
8.0.100.0030.00616.75
8.0.90.0000.00716.79
8.0.80.0090.00616.81
8.0.70.0040.00416.78
8.0.60.0040.00416.73
8.0.50.0040.00416.93
8.0.30.0070.01117.03
8.0.20.0100.01017.40
8.0.10.0050.00316.95
8.0.00.0140.00816.68
7.4.330.0000.00515.09
7.4.320.0070.00016.53
7.4.300.0070.00016.52
7.4.290.0000.00816.64
7.4.280.0000.00716.49
7.4.270.0030.00316.60
7.4.260.0000.00716.40
7.4.250.0040.00416.57
7.4.240.0040.00316.49
7.4.230.0070.00016.43
7.4.220.0130.00316.65
7.4.210.0080.00616.52
7.4.200.0030.00516.36
7.4.190.0070.00016.57
7.4.160.0060.00916.28
7.4.150.0150.00317.40
7.4.140.0110.00617.86
7.4.130.0110.00816.48
7.4.120.0100.00716.44
7.4.110.0090.00916.57
7.4.100.0130.00416.47
7.4.90.0160.00016.59
7.4.80.0000.02019.39
7.4.70.0060.01216.29
7.4.60.0040.01216.25
7.4.50.0040.00416.33
7.4.40.0120.00322.77
7.4.30.0030.01316.40
7.4.00.0070.01015.08
7.3.330.0050.00013.11
7.3.320.0030.00313.05
7.3.310.0000.00716.29
7.3.300.0070.00016.04
7.3.290.0100.01016.20
7.3.280.0080.00716.18
7.3.270.0180.00917.40
7.3.260.0080.01616.32
7.3.250.0080.01016.32
7.3.240.0110.00616.20
7.3.230.0100.00716.45
7.3.210.0130.00916.09
7.3.200.0120.00319.39
7.3.190.0130.01016.33
7.3.180.0080.01216.23
7.3.170.0050.01016.33
7.3.160.0120.00416.42
7.3.120.0070.01014.74
7.2.330.0090.00916.63
7.2.320.0000.01716.45
7.2.310.0030.02116.39
7.2.300.0140.00316.48
7.2.290.0090.00616.55
7.2.00.0000.01319.32
7.1.100.0000.01517.81
7.1.70.0000.01017.02
7.1.60.0070.00316.83
7.1.50.0070.01316.89
7.1.00.0030.09322.36
7.0.200.0000.01116.65
7.0.140.0070.07021.96
7.0.60.0070.05320.03
7.0.50.0000.06717.64
7.0.40.0000.04719.90
7.0.30.0170.06320.09
7.0.20.0330.08020.29
7.0.10.0370.04320.01
7.0.00.0000.04720.30
5.6.280.0000.07721.07
5.6.210.0070.06320.46
5.6.200.0070.08718.21
5.6.190.0170.04320.32
5.6.180.3470.04320.33
5.6.170.0300.08020.53
5.6.160.0100.08320.37
5.6.150.0200.05718.18
5.6.140.0030.06318.14
5.6.130.0070.08018.18
5.6.120.0070.08720.99
5.6.110.0130.08320.99
5.6.100.0130.08021.00
5.6.90.0000.04321.01
5.6.80.0100.07320.37
5.6.70.0270.06720.38
5.5.350.0030.03720.41
5.5.340.0100.03317.92
5.5.330.0070.08720.23
5.5.320.0270.07720.14
5.5.310.0270.05720.20
5.5.300.0070.04018.01
5.5.290.0100.04317.91
5.5.280.0000.04720.72
5.5.270.0030.07020.86
5.5.260.0070.09320.85
5.5.250.0200.06720.57
5.5.240.0130.07720.27
5.4.450.0200.05019.47
5.4.440.0670.06319.52
5.4.430.0030.06019.31
5.4.420.0770.05719.38
5.4.410.0800.05019.31
5.4.400.1070.00018.80
5.4.390.0730.00018.50
5.4.380.0430.04718.72
5.4.370.0200.05318.48
5.4.360.0470.04718.52
5.4.350.0230.05318.56
5.4.340.0200.05018.70
5.4.320.0040.03912.45
5.4.310.0030.04012.45
5.4.300.0060.04712.45
5.4.290.0040.04012.45
5.4.280.0040.03812.34
5.4.270.0060.03612.34
5.4.260.0060.03712.35
5.4.250.0060.04012.34
5.4.240.0040.03812.34
5.4.230.0010.04212.34
5.4.220.0080.03912.34
5.4.210.0110.03812.34
5.4.200.0070.03612.34
5.4.190.0130.04718.77
5.4.180.0170.04318.87
5.4.170.0100.05018.87
5.4.160.0070.05718.99
5.4.150.0130.04718.90
5.4.140.0100.06716.52
5.4.130.0030.06716.38
5.4.120.0130.04716.53
5.4.110.0230.03716.32
5.4.100.0030.06316.32
5.4.90.0130.04716.41
5.4.80.0030.06716.36
5.4.70.0130.05016.22
5.4.60.0100.04716.38
5.4.50.0200.05716.30
5.4.40.0030.07716.36
5.4.30.0130.05016.47
5.4.20.0100.06016.37
5.4.10.0130.07016.54
5.4.00.0130.05715.96
5.3.290.0080.03912.80
5.3.280.0050.03812.71
5.3.270.0130.07314.61
5.3.260.0070.05314.43
5.3.250.0030.05314.61
5.3.240.0130.07314.61
5.3.230.0130.05314.37
5.3.220.0030.05314.43
5.3.210.0100.06014.57
5.3.200.0070.06714.61
5.3.190.0100.05014.58
5.3.180.0170.06014.57
5.3.170.0030.08314.39
5.3.160.0100.06714.56
5.3.150.0000.06014.57
5.3.140.0200.06014.32
5.3.130.0200.05314.56
5.3.120.0170.07014.59
5.3.110.0070.07314.55
5.3.100.0070.05014.02
5.3.90.0170.05014.02
5.3.80.0130.04713.96
5.3.70.0030.05313.93
5.3.60.0030.05714.01
5.3.50.0000.05714.10
5.3.40.0100.04313.99
5.3.30.0100.05013.76
5.3.20.0030.05713.72
5.3.10.0070.07313.55
5.3.00.0100.04313.41
5.2.170.0070.04011.07
5.2.160.0100.04010.97
5.2.150.0070.06311.14
5.2.140.0100.03711.07
5.2.130.0000.04711.21
5.2.120.0100.04011.25
5.2.110.0030.04011.19
5.2.100.0030.05311.19
5.2.90.0070.04011.10
5.2.80.0130.05011.11
5.2.70.0070.04711.02
5.2.60.0070.03711.04
5.2.50.0100.03711.04
5.2.40.0070.04010.91
5.2.30.0000.05011.08
5.2.20.0070.03711.06
5.2.10.0030.04010.93
5.2.00.0030.04010.64
5.1.60.0070.03010.05
5.1.50.0030.03310.04
5.1.40.0100.0409.90
5.1.30.0070.03310.23
5.1.20.0070.05010.24
5.1.10.0000.03710.11
5.1.00.0070.0339.95
5.0.50.0030.0278.41
5.0.40.0070.0378.63
5.0.30.0100.0378.28
5.0.20.0070.0238.24
5.0.10.0000.0337.99
5.0.00.0030.0538.09
4.4.90.0000.0237.20
4.4.80.0000.0237.20
4.4.70.0070.0177.20
4.4.60.0000.0237.20
4.4.50.0100.0137.20
4.4.40.0100.0237.20
4.4.30.0000.0277.20
4.4.20.0030.0207.20
4.4.10.0030.0237.20
4.4.00.0030.0337.20
4.3.110.0070.0177.20
4.3.100.0030.0207.20
4.3.90.0000.0237.20
4.3.80.0030.0337.20
4.3.70.0100.0137.20
4.3.60.0070.0237.20
4.3.50.0030.0237.20
4.3.40.0030.0437.20
4.3.30.0000.0237.20
4.3.20.0000.0237.20
4.3.10.0000.0237.20
4.3.00.0000.0236.97

preferences:
52.52 ms | 400 KiB | 5 Q