3v4l.org

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

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)
8.3.40.0060.00918.54
8.3.30.0100.00319.10
8.3.20.0060.00320.23
8.3.10.0040.00423.68
8.3.00.0040.00420.95
8.2.170.0040.01822.96
8.2.160.0070.00720.51
8.2.150.0070.00024.18
8.2.140.0040.01524.66
8.2.130.0040.00426.16
8.2.120.0070.00720.82
8.2.110.0060.00322.21
8.2.100.0040.00817.78
8.2.90.0030.00519.23
8.2.80.0060.00317.97
8.2.70.0040.00717.50
8.2.60.0070.00318.03
8.2.50.0060.00318.07
8.2.40.0060.00320.07
8.2.30.0040.00418.31
8.2.20.0000.00817.66
8.2.10.0040.00418.07
8.2.00.0040.00417.66
8.1.270.0040.00423.89
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0080.00022.13
8.1.230.0080.00319.09
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0070.00717.11
8.1.190.0080.00017.22
8.1.180.0030.00518.10
8.1.170.0000.01018.53
8.1.160.0040.00422.02
8.1.150.0000.00718.64
8.1.140.0040.00417.50
8.1.130.0000.00717.82
8.1.120.0050.00217.48
8.1.110.0030.00317.43
8.1.100.0000.00717.45
8.1.90.0000.00717.37
8.1.80.0000.00717.43
8.1.70.0030.00317.50
8.1.60.0050.00317.59
8.1.50.0030.00517.45
8.1.40.0000.00817.52
8.1.30.0000.00817.64
8.1.20.0030.00517.67
8.1.10.0060.00317.56
8.1.00.0050.00317.39
8.0.300.0000.00718.77
8.0.290.0040.00417.04
8.0.280.0030.00318.55
8.0.270.0030.00317.24
8.0.260.0030.00617.36
8.0.250.0030.00316.98
8.0.240.0000.00816.87
8.0.230.0000.00716.80
8.0.220.0070.00016.88
8.0.210.0000.00716.84
8.0.200.0030.00316.83
8.0.190.0080.00016.82
8.0.180.0070.00016.97
8.0.170.0090.00016.96
8.0.160.0030.00516.80
8.0.150.0030.00316.77
8.0.140.0030.00316.89
8.0.130.0030.00313.32
8.0.120.0080.00016.95
8.0.110.0000.00816.86
8.0.100.0000.00716.91
8.0.90.0040.00416.76
8.0.80.0110.00816.81
8.0.70.0040.00416.96
8.0.60.0000.00816.78
8.0.50.0000.00716.77
8.0.30.0090.01017.08
8.0.20.0100.01217.40
8.0.10.0000.00817.02
8.0.00.0070.01016.92
7.4.330.0040.00415.00
7.4.320.0000.00616.46
7.4.300.0040.00416.50
7.4.290.0000.00716.45
7.4.280.0030.00516.63
7.4.270.0040.00416.63
7.4.260.0000.00716.42
7.4.250.0000.00716.59
7.4.240.0040.00316.54
7.4.230.0030.00316.70
7.4.220.0090.00916.54
7.4.210.0060.00816.54
7.4.200.0070.00016.50
7.4.190.0030.00316.59
7.4.160.0090.01516.47
7.4.150.0170.00017.40
7.4.140.0110.00917.86
7.4.130.0100.00616.44
7.4.120.0090.00816.39
7.4.110.0100.01416.55
7.4.100.0090.01216.43
7.4.90.0100.00716.44
7.4.80.0100.00719.39
7.4.70.0120.00916.57
7.4.60.0070.01316.66
7.4.50.0050.00016.13
7.4.40.0060.00916.59
7.4.30.0080.00816.49
7.4.00.0100.00715.00
7.3.330.0060.00013.11
7.3.320.0070.00013.13
7.3.310.0000.00716.36
7.3.300.0040.00416.20
7.3.290.0090.00616.17
7.3.280.0100.00816.19
7.3.270.0150.01217.40
7.3.260.0060.01116.45
7.3.250.0090.01216.43
7.3.240.0110.00616.54
7.3.230.0040.01316.50
7.3.210.0070.01116.62
7.3.200.0130.00319.39
7.3.190.0070.01116.60
7.3.180.0090.00616.50
7.3.170.0130.00316.56
7.3.160.0130.00416.21
7.3.120.0110.00314.77
7.2.330.0050.01516.33
7.2.320.0030.01316.73
7.2.310.0120.00916.55
7.2.300.0100.01016.24
7.2.290.0070.01016.35
7.1.70.0190.01016.80
7.1.60.0100.01419.46
7.1.50.0130.00716.53
7.1.00.0100.08322.42
7.0.200.0100.00316.45
7.0.140.0070.07322.14
7.0.100.0070.08019.96
7.0.90.0330.06719.99
7.0.80.0230.07319.89
7.0.70.0230.06019.85
7.0.60.0070.03719.89
7.0.50.0270.08320.34
7.0.40.0070.07320.03
7.0.30.0100.04020.16
7.0.20.0000.05320.08
7.0.10.0100.07020.12
7.0.00.0130.08720.13
5.6.280.0100.07021.09
5.6.250.0100.08020.60
5.6.240.0030.04020.75
5.6.230.0100.08320.68
5.6.220.0100.03720.55
5.6.210.0100.03720.56
5.6.200.0130.07721.07
5.6.190.0070.03721.05
5.6.180.0100.06721.01
5.6.170.0000.04321.11
5.6.160.0170.07021.07
5.6.150.0000.08021.03
5.6.140.0100.07020.98
5.6.130.0100.06021.07
5.6.120.0030.07721.05
5.6.110.0100.07021.01
5.6.100.0130.07720.98
5.6.90.0130.07321.11
5.6.80.0030.08020.42
5.6.70.0070.03320.30
5.6.60.0100.06320.38
5.6.50.0030.06720.55
5.6.40.0070.07320.30
5.6.30.0030.07720.38
5.6.20.0070.08320.38
5.6.10.0130.05720.52
5.6.00.0070.05020.37
5.5.380.0070.05720.38
5.5.370.0030.04020.34
5.5.360.0100.08320.43
5.5.350.0100.06320.43
5.5.340.0030.06720.64
5.5.330.0070.05720.91
5.5.320.0030.04320.73
5.5.310.0130.07720.76
5.5.300.0030.04020.91
5.5.290.0100.03720.86
5.5.280.0030.05020.77
5.5.270.0200.04720.91
5.5.260.0130.07320.88
5.5.250.0100.08320.60
5.5.240.0070.04720.29
5.5.230.0000.05720.17
5.5.220.0130.06720.29
5.5.210.0000.08020.01
5.5.200.0130.07020.11
5.5.190.0170.05020.19
5.5.180.0130.05320.24
5.5.160.0070.08320.12
5.5.150.0170.07020.11
5.5.140.0100.07320.27
5.5.130.0030.04019.96
5.5.120.0070.08319.98
5.5.110.0100.04320.23
5.5.100.0130.07319.97
5.5.90.0100.07320.06
5.5.80.0000.04720.10
5.5.70.0070.08020.14
5.5.60.0100.05320.11
5.5.50.0100.07720.14
5.5.40.0070.08020.05
5.5.30.0100.07020.02
5.5.20.0070.07020.04
5.5.10.0130.07020.11
5.5.00.0100.03320.04
5.4.450.0030.07719.27
5.4.440.0130.04319.44
5.4.430.0070.03719.38
5.4.420.0070.04719.13
5.4.410.0070.06319.22
5.4.400.0100.06719.05
5.4.390.0070.03319.07
5.4.380.0000.07318.81
5.4.370.0130.06019.14
5.4.360.0000.04318.90
5.4.350.0030.06019.12
5.4.340.0130.05018.96
5.4.320.0130.07719.06
5.4.310.0070.06719.13
5.4.300.0030.04019.02
5.4.290.0100.03319.04
5.4.280.0100.03318.96
5.4.270.0170.07019.04
5.4.260.0000.07319.14
5.4.250.0030.07719.09
5.4.240.0030.07719.13
5.4.230.0030.08318.96
5.4.220.0030.07719.02
5.4.210.0100.04019.07
5.4.200.0030.05718.75
5.4.190.0030.07319.05
5.4.180.0070.07719.21
5.4.170.0230.04718.79
5.4.160.0070.03719.10
5.4.150.0000.05018.79
5.4.140.0070.03316.29
5.4.130.0030.03716.26
5.4.120.0100.02716.32
5.4.110.0000.04016.30
5.4.100.0070.03016.26
5.4.90.0000.04716.22
5.4.80.0070.03716.41
5.4.70.0000.03716.20
5.4.60.0070.03316.18
5.4.50.0100.03016.30
5.4.40.0030.03316.46
5.4.30.0100.05016.20
5.4.20.0070.03316.18
5.4.10.0000.05316.28
5.4.00.0030.03315.81
5.3.290.0030.08014.64
5.3.280.0100.05314.42
5.3.270.0000.08014.61
5.3.260.0000.04014.41
5.3.250.0070.03714.46
5.3.240.0030.04014.56
5.3.230.0000.04014.58
5.3.220.0000.04014.43
5.3.210.0000.04014.38
5.3.200.0000.04014.54
5.3.190.0070.03314.54
5.3.180.0070.03714.39
5.3.170.0070.04014.47
5.3.160.0130.05314.41
5.3.150.0070.07714.56
5.3.140.0030.06014.48
5.3.130.0130.05014.53
5.3.120.0070.03314.55
5.3.110.0100.05014.48
5.3.100.0030.03714.03
5.3.90.0130.02713.85
5.3.80.0000.04014.00
5.3.70.0030.03713.88
5.3.60.0000.04013.96
5.3.50.0000.03713.80
5.3.40.0030.03313.93
5.3.30.0070.03013.77
5.3.20.0070.02713.68
5.3.10.0000.03713.64
5.3.00.0000.04013.54
5.2.170.0030.02711.12
5.2.160.0070.02711.00
5.2.150.0000.03711.21
5.2.140.0070.02311.13
5.2.130.0030.02711.11
5.2.120.0000.03310.92
5.2.110.0000.03311.05
5.2.100.0030.02711.09
5.2.90.0000.03011.04
5.2.80.0000.03711.11
5.2.70.0100.02311.14
5.2.60.0100.02011.04
5.2.50.0070.02710.85
5.2.40.0000.03010.98
5.2.30.0000.03010.93
5.2.20.0030.03010.79
5.2.10.0070.02310.71
5.2.00.0000.03010.64
5.1.60.0070.02310.02
5.1.50.0000.0239.98
5.1.40.0030.02310.00
5.1.30.0070.02010.39
5.1.20.0030.03010.40
5.1.10.0030.02310.09
5.1.00.0030.02310.05
5.0.50.0070.0138.52
5.0.40.0000.0238.23
5.0.30.0000.0308.21
5.0.20.0000.0208.22
5.0.10.0030.0178.15
5.0.00.0030.0308.14
4.4.90.0030.0137.85
4.4.80.0000.0137.85
4.4.70.0000.0177.85
4.4.60.0070.0077.85
4.4.50.0000.0177.85
4.4.40.0000.0237.85
4.4.30.0030.0137.85
4.4.20.0030.0137.85
4.4.10.0070.0107.85
4.4.00.0000.0237.85
4.3.110.0000.0177.85
4.3.100.0000.0177.85
4.3.90.0000.0137.85
4.3.80.0000.0237.85
4.3.70.0070.0107.85
4.3.60.0030.0137.85
4.3.50.0030.0137.85
4.3.40.0000.0237.85
4.3.30.0000.0177.85
4.3.20.0030.0137.85
4.3.10.0000.0177.85
4.3.00.0000.0177.85

preferences:
43.06 ms | 400 KiB | 5 Q