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)
8.3.60.0130.00416.38
8.3.50.0100.01121.91
8.3.40.0150.00618.84
8.3.30.0070.00719.05
8.3.20.0070.00020.39
8.3.10.0060.00323.36
8.3.00.0040.00419.02
8.2.180.0160.00016.50
8.2.170.0070.00722.96
8.2.160.0130.00020.37
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00420.90
8.2.110.0090.00022.14
8.2.100.0030.00720.45
8.2.90.0040.00419.21
8.2.80.0080.00017.97
8.2.70.0050.00317.50
8.2.60.0040.00717.80
8.2.50.0030.00618.07
8.2.40.0000.00820.01
8.2.30.0000.00818.25
8.2.20.0040.00417.69
8.2.10.0040.00417.97
8.2.00.0040.00417.67
8.1.280.0110.00425.92
8.1.270.0080.00023.91
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00322.14
8.1.230.0090.00318.86
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0070.00417.23
8.1.190.0040.00417.25
8.1.180.0080.00318.10
8.1.170.0070.00418.37
8.1.160.0000.00821.98
8.1.150.0030.00518.65
8.1.140.0040.00417.46
8.1.130.0030.00317.79
8.1.120.0000.00717.46
8.1.110.0080.00017.32
8.1.100.0050.00217.43
8.1.90.0030.00717.51
8.1.80.0000.00817.56
8.1.70.0070.00017.39
8.1.60.0060.00317.55
8.1.50.0050.00317.59
8.1.40.0070.00017.45
8.1.30.0000.00917.52
8.1.20.0080.00017.69
8.1.10.0000.00917.52
8.1.00.0000.00717.44
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0000.00718.32
8.0.270.0030.00317.25
8.0.260.0000.00617.25
8.0.250.0070.00016.98
8.0.240.0030.00616.96
8.0.230.0000.00616.96
8.0.220.0040.00416.79
8.0.210.0070.00016.89
8.0.200.0000.00716.82
8.0.190.0000.00816.96
8.0.180.0040.00416.86
8.0.170.0000.00716.93
8.0.160.0040.00416.81
8.0.150.0070.00016.88
8.0.140.0030.00316.84
8.0.130.0000.00513.29
8.0.120.0020.00516.86
8.0.110.0080.00016.84
8.0.100.0050.00216.76
8.0.90.0000.00816.91
8.0.80.0100.00616.84
8.0.70.0070.00016.77
8.0.60.0040.00416.88
8.0.50.0040.00416.94
8.0.30.0110.00817.04
8.0.20.0080.01217.40
8.0.10.0000.00817.00
8.0.00.0130.00516.87
7.4.330.0000.00515.04
7.4.320.0000.00616.44
7.4.300.0000.00616.49
7.4.290.0070.00016.53
7.4.280.0040.00416.50
7.4.270.0040.00416.64
7.4.260.0030.00316.49
7.4.250.0000.00716.46
7.4.240.0030.00316.59
7.4.230.0070.00016.59
7.4.220.0070.01116.54
7.4.210.0080.00716.57
7.4.200.0030.00316.40
7.4.190.0040.00416.48
7.4.160.0120.00316.44
7.4.150.0110.00717.40
7.4.140.0070.01117.86
7.4.130.0110.00716.37
7.4.120.0060.01316.41
7.4.110.0090.00616.40
7.4.100.0100.01016.52
7.4.90.0110.00716.50
7.4.80.0120.00619.39
7.4.70.0120.00316.51
7.4.60.0130.00716.43
7.4.50.0020.00216.35
7.4.40.0070.00716.46
7.4.30.0060.01016.24
7.4.00.0070.01014.85
7.3.330.0050.00013.04
7.3.320.0000.00713.04
7.3.310.0040.00416.27
7.3.300.0030.00316.30
7.3.290.0060.01316.18
7.3.280.0120.00716.18
7.3.270.0070.01017.40
7.3.260.0090.00916.23
7.3.250.0100.00916.49
7.3.240.0050.01516.13
7.3.230.0090.00616.39
7.3.210.0090.00916.31
7.3.200.0090.01019.39
7.3.190.0170.00616.26
7.3.180.0070.00716.39
7.3.170.0060.01016.36
7.3.160.0040.01216.20
7.3.120.0030.01314.74
7.3.110.0090.00614.84
7.3.100.0100.00714.75
7.3.90.0090.00714.75
7.3.80.0070.00714.62
7.3.70.0000.00914.66
7.3.60.0040.00414.72
7.3.50.0060.00614.87
7.3.40.0000.01314.70
7.3.30.0000.01314.54
7.3.20.0060.00616.45
7.3.10.0030.01416.63
7.3.00.0060.00916.61
7.2.330.0090.00916.61
7.2.320.0090.00616.23
7.2.310.0120.00916.61
7.2.300.0090.01316.55
7.2.290.0080.00816.38
7.2.250.0070.01114.94
7.2.240.0100.01015.11
7.2.230.0090.00914.91
7.2.220.0070.00314.91
7.2.210.0100.00714.56
7.2.200.0050.00514.78
7.2.190.0060.00314.95
7.2.180.0120.00315.07
7.2.170.0040.00414.93
7.2.00.0070.00719.18
7.1.330.0000.01515.63
7.1.320.0070.00715.80
7.1.310.0030.01515.73
7.1.300.0030.01015.36
7.1.290.0040.01115.57
7.1.280.0040.00815.86
7.1.270.0110.00415.54
7.1.260.0000.00915.43
7.1.100.0030.01018.03
7.1.70.0000.00717.14
7.1.60.0080.00819.46
7.1.50.0030.01716.49
7.1.00.0070.07322.25
7.0.200.0000.01016.66
7.0.140.0030.07021.93
7.0.60.0270.07319.84
7.0.50.0130.03317.81
7.0.40.0130.06019.90
7.0.30.0030.09020.20
7.0.20.0030.09020.39
7.0.10.0130.08020.04
7.0.00.0030.09320.07
5.6.280.0100.06720.90
5.6.210.0130.07720.66
5.6.200.0100.04318.21
5.6.190.0030.07020.57
5.6.180.0030.05320.45
5.6.170.0170.03320.49
5.6.160.0070.07720.41
5.6.150.0070.08720.43
5.6.140.0070.07020.34
5.6.130.0170.06720.43
5.6.120.0100.05020.28
5.6.110.0100.09020.33
5.6.100.0070.07720.16
5.6.90.0000.05720.38
5.6.80.0070.08019.80
5.6.70.0170.05319.65
5.6.60.0230.06319.48
5.6.50.0170.07719.49
5.6.40.0070.04719.79
5.6.30.0170.07319.77
5.6.20.0070.05019.52
5.6.10.0030.04719.67
5.6.00.0070.07319.52
5.5.350.0030.08020.51
5.5.340.0030.08317.92
5.5.330.0030.04720.21
5.5.320.0030.08020.15
5.5.310.0130.03320.57
5.5.300.0130.08020.17
5.5.290.0070.04320.07
5.5.280.0030.05020.17
5.5.270.0070.08020.23
5.5.260.0100.08320.21
5.5.250.0030.04320.04
5.5.240.0100.07719.59
5.5.230.0030.09019.49
5.5.220.0070.08319.58
5.5.210.0130.07019.30
5.5.200.0070.07319.53
5.5.190.0070.07019.52
5.5.180.0030.04319.59
5.5.160.0100.05719.55
5.5.150.0070.07319.46
5.5.140.0130.04319.47
5.5.130.0100.07719.61
5.5.120.0000.05719.25
5.5.110.0000.04319.51
5.5.100.0100.05019.48
5.5.90.0030.04019.37
5.5.80.0070.04319.50
5.5.70.0170.06019.38
5.5.60.0200.05019.41
5.5.50.0130.07719.14
5.5.40.0000.04719.41
5.5.30.0070.07719.43
5.5.20.0000.04319.36
5.5.10.0130.06319.42
5.5.00.0070.04719.21
5.4.450.0030.05719.26
5.4.440.0070.06019.47
5.4.430.0100.03719.40
5.4.420.0070.05019.40
5.4.410.0200.04719.31
5.4.400.0100.06018.91
5.4.390.0170.06018.79
5.4.380.0030.04718.79
5.4.370.0130.07019.18
5.4.360.0100.07718.92
5.4.350.0070.03718.91
5.4.340.0030.07019.16
5.4.320.0000.07718.79
5.4.310.0000.08019.14
5.4.300.0030.07718.79
5.4.290.0100.07719.08
5.4.280.0130.07319.17
5.4.270.0000.04318.91
5.4.260.0000.04019.20
5.4.250.0000.04719.17
5.4.240.0100.07719.17
5.4.230.0100.06319.00
5.4.220.0030.04719.13
5.4.210.0100.06718.91
5.4.200.0100.07018.91
5.4.190.0100.07718.78
5.4.180.0130.04719.14
5.4.170.0170.07018.91
5.4.160.0070.05019.15
5.4.150.0000.04319.13
5.4.140.0070.03316.25
5.4.130.0070.03316.24
5.4.120.0030.03716.25
5.4.110.0030.03716.30
5.4.100.0000.03716.23
5.4.90.0000.03716.32
5.4.80.0030.03716.29
5.4.70.0070.04716.25
5.4.60.0030.03716.24
5.4.50.0030.03316.31
5.4.40.0100.03716.12
5.4.30.0000.03716.30
5.4.20.0070.03016.33
5.4.10.0030.05316.25
5.4.00.0000.03715.69
5.3.290.0030.05014.59
5.3.280.0170.07014.60
5.3.270.0030.04014.53
5.3.260.0030.08314.54
5.3.250.0170.04014.48
5.3.240.0000.04014.61
5.3.230.0000.04014.39
5.3.220.0000.04014.64
5.3.210.0030.03714.49
5.3.200.0000.04014.53
5.3.190.0070.03314.49
5.3.180.0000.04014.49
5.3.170.0000.04014.50
5.3.160.0030.03314.53
5.3.150.0100.03014.55
5.3.140.0170.02714.45
5.3.130.0000.04014.52
5.3.120.0070.04314.47
5.3.110.0030.03714.44
5.3.100.0000.04013.82
5.3.90.0030.03713.94
5.3.80.0000.04014.10
5.3.70.0000.04013.80
5.3.60.0000.04013.81
5.3.50.0030.03313.76
5.3.40.0000.03713.87
5.3.30.0000.03713.72
5.3.20.0000.03713.78
5.3.10.0000.04013.49
5.3.00.0070.03313.56
5.2.170.0030.03011.09
5.2.160.0000.03311.05
5.2.150.0030.02711.05
5.2.140.0030.03310.99
5.2.130.0000.03011.07
5.2.120.0000.03011.00
5.2.110.0030.03010.95
5.2.100.0000.03011.00
5.2.90.0000.03011.04
5.2.80.0030.02710.97
5.2.70.0070.02311.02
5.2.60.0070.02310.97
5.2.50.0000.03010.88
5.2.40.0000.03010.98
5.2.30.0070.02310.90
5.2.20.0030.02710.94
5.2.10.0000.03010.94
5.2.00.0070.04010.75
5.1.60.0030.0309.99
5.1.50.0030.04310.04
5.1.40.0070.0209.95
5.1.30.0070.05310.34
5.1.20.0000.06010.34
5.1.10.0100.03710.04
5.1.00.0000.03010.07
5.0.50.0030.0438.54
5.0.40.0000.0308.41
5.0.30.0000.0578.23
5.0.20.0000.0378.24
5.0.10.0070.0438.20
5.0.00.0030.0638.12
4.4.90.0000.0136.21
4.4.80.0030.0106.21
4.4.70.0000.0176.21
4.4.60.0000.0176.21
4.4.50.0000.0236.21
4.4.40.0000.0536.21
4.4.30.0030.0206.21
4.4.20.0100.0176.21
4.4.10.0000.0206.21
4.4.00.0030.0436.21
4.3.110.0000.0276.21
4.3.100.0070.0276.21
4.3.90.0000.0236.21
4.3.80.0000.0406.21
4.3.70.0000.0306.21
4.3.60.0000.0306.21
4.3.50.0030.0236.21
4.3.40.0030.0276.21
4.3.30.0030.0276.21
4.3.20.0000.0276.21
4.3.10.0000.0406.21
4.3.00.0030.0336.21

preferences:
40.43 ms | 401 KiB | 5 Q