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 < 100000; $i++) { $f1($var); } echo microtime(1) - $s; echo "\n"; $s = microtime(1); for ($i = 0; $i < 100000; $i++) { $f2($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)
7.2.00.0000.02519.26
7.1.70.0030.01617.21
7.1.60.0130.03219.40
7.1.50.0030.03716.90
7.1.00.0070.05022.31
7.0.200.0000.02216.78
7.0.140.0030.08021.99
7.0.120.0100.08722.11
7.0.60.0070.10019.92
7.0.50.0070.10017.88
7.0.40.0070.09317.72
7.0.30.0130.08017.86
7.0.20.0100.04317.73
7.0.10.0030.08317.76
7.0.00.0030.09317.74
5.6.280.0070.11320.77
5.6.210.0200.08720.77
5.6.200.0030.11318.18
5.6.190.0030.09018.18
5.6.180.0070.11718.18
5.6.170.0100.11018.23
5.6.160.0070.10318.22
5.6.150.0070.08318.18
5.6.140.0030.11318.28
5.6.130.0070.11318.18
5.6.120.0070.07318.27
5.6.110.0070.12718.18
5.6.100.0100.08718.17
5.6.90.0230.09318.21
5.6.80.0070.07017.57
5.6.70.0070.06017.68
5.6.60.0030.09717.64
5.6.50.0100.07317.56
5.6.40.0070.05717.56
5.6.30.0030.11317.64
5.6.20.0000.06317.60
5.6.10.0030.11317.53
5.6.00.0000.11317.59
5.5.350.0300.11020.34
5.5.340.0070.11317.98
5.5.330.0170.10717.97
5.5.320.0130.10717.99
5.5.310.0000.06717.92
5.5.300.0100.11318.02
5.5.290.0130.10718.08
5.5.280.0030.07717.95
5.5.270.0030.08717.94
5.5.260.0200.11017.99
5.5.250.0100.10717.85
5.5.240.0000.08717.38
5.5.230.0030.06717.37
5.5.220.0130.07017.46
5.5.210.0200.09717.30
5.5.200.0070.07317.33
5.5.190.0030.07017.28
5.5.180.0030.06317.30
5.5.160.0000.10017.43
5.5.150.0070.05717.34
5.5.140.0130.09717.27
5.5.130.0030.09717.36
5.5.120.0130.10017.42
5.5.110.0000.06717.33
5.5.100.0030.11017.29
5.5.90.0070.10717.28
5.5.80.0100.09017.23
5.5.70.0030.11717.32
5.5.60.0070.05717.32
5.5.50.0030.11017.21
5.5.40.0030.06017.21
5.5.30.0070.11017.18
5.5.20.0070.08017.25
5.5.10.0130.10717.19
5.5.00.0030.06317.21
5.4.450.0070.11319.36
5.4.440.0100.10719.37
5.4.430.0030.12719.37
5.4.420.0100.08319.32
5.4.410.0100.09719.31
5.4.400.0100.11019.14
5.4.390.0000.08319.01
5.4.380.0100.09019.09
5.4.370.0070.06319.10
5.4.360.0030.09718.95
5.4.350.0170.04719.13
5.4.340.0070.06019.01
5.4.320.0130.10319.05
5.4.310.0070.10319.04
5.4.300.0100.10719.05
5.4.290.0030.08019.05
5.4.280.0000.11319.03
5.4.270.0170.09319.04
5.4.260.0030.08019.05
5.4.250.0100.10718.95
5.4.240.0030.11019.26
5.4.230.0070.11019.00
5.4.220.0070.06018.97
5.4.210.0070.11319.04
5.4.200.0070.05719.11
5.4.190.0030.10719.04
5.4.180.0100.10319.00
5.4.170.0070.08719.04
5.4.160.0100.10019.07
5.4.150.0030.08719.02
5.4.140.0030.06316.38
5.4.130.0030.08016.39
5.4.120.0130.10316.23
5.4.110.0100.10716.48
5.4.100.0070.05716.48
5.4.90.0070.10316.48
5.4.80.0100.05316.39
5.4.70.0100.10016.39
5.4.60.0100.08316.40
5.4.50.0130.10016.49
5.4.40.0070.05716.48
5.4.30.0000.08716.40
5.4.20.0170.09316.35
5.4.10.0070.11016.43
5.4.00.0030.09715.79
5.3.290.0070.11014.52
5.3.280.0070.10714.56
5.3.270.0000.06314.68
5.3.260.0100.10714.63
5.3.250.0030.06714.68
5.3.240.0030.06314.66
5.3.230.0030.07014.71
5.3.220.0070.10314.53
5.3.210.0030.12014.59
5.3.200.0070.09714.42
5.3.190.0030.11714.59
5.3.180.0070.10714.57
5.3.170.0100.10714.60
5.3.160.0070.11014.64
5.3.150.0100.09314.62
5.3.140.0130.10014.61
5.3.130.0130.09314.57
5.3.120.0070.11014.62
5.3.110.0100.07714.60
5.3.100.0070.10014.07
5.3.90.0100.10714.01
5.3.80.0070.08714.07
5.3.70.0100.11314.07
5.3.60.0030.10014.05
5.3.50.0170.09713.81
5.3.40.0030.09013.97
5.3.30.0000.07013.94
5.3.20.0030.11713.60
5.3.10.0130.05313.69
5.3.00.0000.07013.66
5.2.170.0000.06711.18
5.2.160.0070.04311.14
5.2.150.0030.05011.13
5.2.140.0070.02711.07
5.2.130.0030.06011.07
5.2.120.0130.05310.93
5.2.110.0030.02711.08
5.2.100.0000.03010.99
5.2.90.0000.03011.01
5.2.80.0100.05710.86
5.2.70.0030.06710.91
5.2.60.0070.06310.83
5.2.50.0030.06710.84
5.2.40.0100.06010.96
5.2.30.0100.05710.79
5.2.20.0070.05010.96
5.2.10.0070.05310.86
5.2.00.0030.04310.56
5.1.60.0030.0509.93
5.1.50.0030.0539.98
5.1.40.0030.04010.13
5.1.30.0030.05010.28
5.1.20.0000.04710.39
5.1.10.0030.04710.06
5.1.00.0070.03710.04
5.0.50.0000.0478.56
5.0.40.0030.0438.45
5.0.30.0000.0578.24
5.0.20.0000.0378.14
5.0.10.0070.0438.14
5.0.00.0000.0438.23
4.4.90.0000.0308.14
4.4.80.0070.0208.14
4.4.70.0030.0208.14
4.4.60.0030.0208.14
4.4.50.0070.0308.14
4.4.40.0100.0338.14
4.4.30.0070.0338.14
4.4.20.0030.0338.14
4.4.10.0000.0378.14
4.4.00.0000.0538.14
4.3.110.0030.0308.14
4.3.100.0030.0378.14
4.3.90.0000.0308.14
4.3.80.0030.0378.14
4.3.70.0030.0278.14
4.3.60.0100.0278.14
4.3.50.0000.0408.14
4.3.40.0030.0338.14
4.3.30.0030.0178.14
4.3.20.0030.0378.14
4.3.10.0000.0378.14
4.3.00.0000.0308.14

preferences:
41.56 ms | 401 KiB | 5 Q