3v4l.org

run code in 300+ PHP versions simultaneously
<?php //$var = 'A'; //$var = ''; //$var = null; $var = 0; $f1 = function($var) { if (! isset($var) || $var) { //echo "set default"; //"not empty or not defiend or a null value"; } else { //echo "not default"; //"empty"; } }; $f2 = function($var) { if (! isset($var) || ! empty($var)) { //echo "set default"; } else { //echo "not default"; } }; $s = microtime(1); for ($i = 0; $i < 10000; $i++) { $f1($var); } echo microtime(1) - $s;

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)
7.4.00.0080.01115.14
7.3.120.0030.01414.97
7.3.110.0130.00715.00
7.3.100.0040.01114.99
7.3.90.0100.00714.68
7.3.80.0040.00814.98
7.3.70.0090.00614.93
7.3.60.0000.01114.63
7.3.50.0040.01114.75
7.3.40.0060.00914.93
7.3.30.0090.00914.77
7.3.20.0000.00916.57
7.3.10.0030.01016.63
7.3.00.0090.00616.79
7.2.250.0040.01015.25
7.2.240.0030.01315.18
7.2.230.0100.00715.09
7.2.220.0130.00714.92
7.2.210.0030.01014.68
7.2.200.0020.01314.95
7.2.190.0080.00615.03
7.2.180.0000.01615.11
7.2.170.0030.00915.05
7.2.00.0000.01019.57
7.1.330.0030.01315.90
7.1.320.0000.02015.82
7.1.310.0030.00915.82
7.1.300.0030.01415.57
7.1.290.0060.00615.74
7.1.280.0040.00815.80
7.1.270.0060.00615.70
7.1.260.0000.01015.92
7.1.70.0000.01217.30
7.1.60.0140.01019.40
7.1.50.0090.01617.06
7.1.00.0030.08022.48
7.0.200.0050.00316.80
7.0.140.0100.07022.09
7.0.100.0170.07719.88
7.0.90.0100.06719.83
7.0.80.0100.05719.93
7.0.70.0170.06320.00
7.0.60.0130.07319.91
7.0.50.0300.08020.21
7.0.40.0170.07720.00
7.0.30.0070.06320.12
7.0.20.0070.07320.13
7.0.10.0200.06720.07
7.0.00.0000.07019.97
5.6.280.0000.08021.08
5.6.250.0170.06020.55
5.6.240.0030.07720.55
5.6.230.0130.07320.70
5.6.220.0100.04020.48
5.6.210.0070.04020.70
5.6.200.0170.07020.89
5.6.190.0070.06720.89
5.6.180.0130.04720.99
5.6.170.0000.06321.13
5.6.160.0170.06021.00
5.6.150.0030.05021.02
5.6.140.0070.08321.04
5.6.130.0100.08020.95
5.6.120.0070.07021.03
5.6.110.0070.08021.00
5.6.100.0100.07020.88
5.6.90.0000.06020.88
5.6.80.0070.07720.38
5.6.70.0070.07720.36
5.6.60.0170.07320.32
5.6.50.0030.08720.34
5.6.40.0030.08720.32
5.6.30.0130.06020.48
5.6.20.0070.08020.39
5.6.10.0170.07320.44
5.6.00.0100.08320.30
5.5.380.0070.08320.32
5.5.370.0100.08320.45
5.5.360.0000.08320.44
5.5.350.0130.04720.32
5.5.340.0130.07320.84
5.5.330.0230.03320.75
5.5.320.0070.05020.80
5.5.310.0300.03720.86
5.5.300.0130.04320.70
5.5.290.0070.07020.81
5.5.280.0130.06320.85
5.5.270.0000.09020.70
5.5.260.0100.08320.74
5.5.250.0200.06720.68
5.5.240.0030.04720.16
5.5.230.0200.03720.10
5.5.220.0030.07020.25
5.5.210.0000.05320.11
5.5.200.0070.07320.09
5.5.190.0030.08320.17
5.5.180.0130.06019.94
5.5.160.0070.07320.03
5.5.150.0130.04020.03
5.5.140.0130.08020.20
5.5.130.0170.06720.07
5.5.120.0070.07320.18
5.5.110.0100.07020.21
5.5.100.0100.08020.12
5.5.90.0170.04019.88
5.5.80.0070.04019.96
5.5.70.0100.06320.05
5.5.60.0100.07320.14
5.5.50.0030.07320.01
5.5.40.0100.06719.98
5.5.30.0130.04020.00
5.5.20.0130.07319.91
5.5.10.0070.04720.08
5.5.00.0100.07720.02
5.4.450.0100.03319.46
5.4.440.0100.06019.54
5.4.430.0030.08319.17
5.4.420.0070.08019.35
5.4.410.0070.07019.29
5.4.400.0030.04719.13
5.4.390.0030.04319.13
5.4.380.0100.04719.09
5.4.370.0200.05719.18
5.4.360.0130.06318.85
5.4.350.0100.06319.16
5.4.340.0100.08019.05
5.4.320.0130.07019.03
5.4.310.0030.08719.12
5.4.300.0130.05318.90
5.4.290.0170.03319.05
5.4.280.0170.03319.05
5.4.270.0030.08019.09
5.4.260.0070.06718.90
5.4.250.0130.05719.20
5.4.240.0070.07019.20
5.4.230.0130.04719.02
5.4.220.0100.06718.90
5.4.210.0030.08019.18
5.4.200.0100.06318.86
5.4.190.0030.06718.93
5.4.180.0070.08319.17
5.4.170.0070.05319.04
5.4.160.0200.06019.02
5.4.150.0070.04019.19
5.4.140.0170.04716.36
5.4.130.0070.06716.35
5.4.120.0070.05316.18
5.4.110.0000.07316.43
5.4.100.0100.03716.49
5.4.90.0070.04716.50
5.4.80.0000.04716.41
5.4.70.0000.04316.49
5.4.60.0100.07316.39
5.4.50.0070.07316.36
5.4.40.0070.07316.49
5.4.30.0070.07016.36
5.4.20.0100.06716.45
5.4.10.0070.07316.44
5.4.00.0070.04715.73
5.3.290.0030.06714.59
5.3.280.0030.05714.59
5.3.270.0030.04714.67
5.3.260.0030.04014.57
5.3.250.0030.07714.64
5.3.240.0070.06714.62
5.3.230.0030.08314.66
5.3.220.0170.07014.59
5.3.210.0100.08014.56
5.3.200.0000.05014.68
5.3.190.0030.08314.63
5.3.180.0130.07714.63
5.3.170.0070.07714.58
5.3.160.0130.07014.69
5.3.150.0070.07714.52
5.3.140.0130.03014.53
5.3.130.0130.05314.61
5.3.120.0170.03714.66
5.3.110.0170.04714.55
5.3.100.0000.06714.06
5.3.90.0030.08014.01
5.3.80.0030.08014.00
5.3.70.0030.07714.14
5.3.60.0130.06314.11
5.3.50.0070.07014.09
5.3.40.0070.04014.04
5.3.30.0070.03713.95
5.3.20.0100.03713.83
5.3.10.0030.03713.58
5.3.00.0070.06313.53
5.2.170.0100.02311.10
5.2.160.0000.03011.00
5.2.150.0030.04011.06
5.2.140.0000.04310.97
5.2.130.0000.03010.98
5.2.120.0070.04010.91
5.2.110.0000.03711.10
5.2.100.0070.06011.13
5.2.90.0030.04711.14
5.2.80.0030.03011.02
5.2.70.0030.06310.91
5.2.60.0130.05310.84
5.2.50.0030.05311.02
5.2.40.0100.02710.99
5.2.30.0070.03011.01
5.2.20.0000.03011.02
5.2.10.0030.03310.89
5.2.00.0070.03310.66
5.1.60.0030.05010.03
5.1.50.0070.05010.04
5.1.40.0070.0509.86
5.1.30.0030.04010.40
5.1.20.0030.03010.40
5.1.10.0100.04710.09
5.1.00.0070.0539.90
5.0.50.0030.0238.38
5.0.40.0070.0308.43
5.0.30.0030.0438.05
5.0.20.0030.0338.31
5.0.10.0130.0338.17
5.0.00.0030.0438.27
4.4.90.0000.0277.43
4.4.80.0070.0237.43
4.4.70.0030.0277.43
4.4.60.0030.0337.43
4.4.50.0030.0177.43
4.4.40.0070.0337.43
4.4.30.0000.0237.43
4.4.20.0000.0377.43
4.4.10.0000.0407.43
4.4.00.0030.0277.43
4.3.110.0000.0277.43
4.3.100.0000.0207.43
4.3.90.0000.0277.43
4.3.80.0030.0277.43
4.3.70.0030.0237.43
4.3.60.0030.0137.43
4.3.50.0000.0207.43
4.3.40.0030.0337.43
4.3.30.0000.0207.43
4.3.20.0000.0237.43
4.3.10.0000.0207.43
4.3.00.0070.0337.43

preferences:
38.09 ms | 401 KiB | 5 Q