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; echo "\n"; $s1 = microtime(1); for ($i = 0; $i < 10000; $i++) { $f2($var); } echo microtime(1) - $s1;

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)
7.4.10.0090.00914.53
7.4.00.0090.00914.81
7.3.130.0020.01614.73
7.3.120.0100.01014.80
7.3.110.0000.01814.81
7.3.100.0080.00814.63
7.3.90.0000.01714.85
7.3.80.0070.01015.14
7.3.70.0060.00914.57
7.3.60.0000.01114.72
7.3.50.0060.01014.87
7.3.40.0000.01314.80
7.3.30.0060.00614.73
7.3.20.0070.01016.53
7.3.10.0100.00616.57
7.3.00.0130.01016.51
7.2.260.0100.01015.10
7.2.250.0000.02014.87
7.2.240.0030.01415.21
7.2.230.0070.00714.98
7.2.220.0040.01214.72
7.2.210.0090.00615.23
7.2.200.0060.01315.13
7.2.190.0040.00914.70
7.2.180.0030.01314.97
7.2.170.0060.00914.73
7.2.160.0100.00714.76
7.2.150.0070.01017.05
7.2.140.0060.00916.83
7.2.130.0090.01017.06
7.2.120.0040.01416.80
7.2.110.0080.00816.65
7.2.100.0030.01416.56
7.2.90.0070.01217.02
7.2.80.0050.01116.84
7.2.70.0080.00816.69
7.2.60.0120.01016.77
7.2.50.0130.00816.67
7.2.40.0090.01016.69
7.2.30.0090.00616.89
7.2.20.0100.00816.85
7.2.10.0120.00516.84
7.2.00.0060.01117.75
7.1.330.0090.00915.79
7.1.320.0040.01215.82
7.1.310.0100.01015.77
7.1.300.0000.01315.83
7.1.290.0040.01215.59
7.1.280.0070.01015.71
7.1.270.0030.01215.64
7.1.260.0080.00815.87
7.1.250.0060.02015.74
7.1.240.0030.01016.00
7.1.230.0030.01615.88
7.1.220.0090.00315.82
7.1.210.0030.01615.79
7.1.200.0120.00615.71
7.1.190.0070.01315.93
7.1.180.0070.01315.64
7.1.170.0090.00915.93
7.1.160.0070.01015.65
7.1.150.0000.01915.75
7.1.140.0030.01315.62
7.1.130.0030.01715.75
7.1.120.0030.01715.71
7.1.110.0030.01315.81
7.1.100.0090.00915.71
7.1.90.0060.00915.73
7.1.80.0040.01115.82
7.1.70.0040.00616.35
7.1.60.0050.01517.47
7.1.50.0070.01416.26
7.1.40.0090.01215.53
7.1.30.0110.00415.76
7.1.20.0050.00815.79
7.1.10.0060.01315.79
7.1.00.0060.03619.15
7.0.330.0070.01015.44
7.0.320.0030.01215.47
7.0.310.0070.01315.31
7.0.300.0100.00715.39
7.0.290.0040.01515.56
7.0.280.0040.01215.19
7.0.270.0120.00615.39
7.0.260.0090.00915.25
7.0.250.0060.01215.41
7.0.240.0040.00715.58
7.0.230.0070.00715.43
7.0.220.0060.01315.16
7.0.210.0070.01015.47
7.0.200.0020.01216.00
7.0.190.0030.01715.54
7.0.180.0030.01315.09
7.0.170.0000.02115.34
7.0.160.0100.01015.43
7.0.150.0000.01715.21
7.0.140.0000.04518.71
7.0.130.0090.00615.48
7.0.120.0000.01415.39
7.0.110.0030.01215.50
7.0.100.0050.02517.69
7.0.90.0050.02717.70
7.0.80.0070.03317.76
7.0.70.0100.03217.77
7.0.60.0070.02717.73
7.0.50.0050.02717.90
7.0.40.0070.02516.79
7.0.30.0100.02516.59
7.0.20.0040.03816.77
7.0.10.0080.04316.79
7.0.00.0120.03216.63
5.6.400.0030.01614.11
5.6.390.0160.00714.28
5.6.380.0060.01614.15
5.6.370.0070.01714.19
5.6.360.0030.01314.59
5.6.350.0130.01014.32
5.6.340.0070.01014.64
5.6.330.0060.01314.14
5.6.320.0000.02014.58
5.6.310.0070.01714.52
5.6.300.0030.01614.15
5.6.290.0100.01314.20
5.6.280.0050.04817.80
5.6.270.0060.01514.64
5.6.260.0000.02114.28
5.6.250.0050.02817.52
5.6.240.0070.03017.44
5.6.230.0070.04017.50
5.6.220.0050.03317.55
5.6.210.0050.02717.43
5.6.200.0030.03217.78
5.6.190.0000.03717.67
5.6.180.0070.02717.60
5.6.170.0050.03017.60
5.6.160.0080.04717.68
5.6.150.0070.02717.63
5.6.140.0050.03917.76
5.6.130.0030.05617.83
5.6.120.0030.05617.69
5.6.110.0110.04617.66
5.6.100.0050.04717.73
5.6.90.0040.04617.59
5.6.80.0080.04917.36
5.6.70.0100.04417.29
5.6.60.0100.04717.23
5.6.50.0020.05317.28
5.6.40.0070.04917.25
5.6.30.0080.05117.32
5.6.20.0120.04217.34
5.6.10.0100.04517.36
5.6.00.0080.04317.34
5.5.380.0050.03217.21
5.5.370.0050.02817.34
5.5.360.0100.03517.24
5.5.350.0020.03517.44
5.5.340.0030.03417.67
5.5.330.0080.03617.57
5.5.320.0100.02417.44
5.5.310.0050.03017.57
5.5.300.0100.02517.51
5.5.290.0080.03717.71
5.5.280.0080.04817.38
5.5.270.0110.04617.37
5.5.260.0070.04717.42
5.5.250.0130.03317.53
5.5.240.0120.04417.21
5.5.230.0100.04517.12
5.5.220.0070.04717.18
5.5.210.0030.05217.22
5.5.200.0130.03617.29
5.5.190.0080.03317.12
5.5.180.0070.04917.10
5.5.170.0030.01714.42
5.5.160.0030.04917.23
5.5.150.0030.03917.29
5.5.140.0000.03217.13
5.5.130.0070.04917.21
5.5.120.0070.04517.12
5.5.110.0060.03817.18
5.5.100.0070.05017.13
5.5.90.0080.04517.16
5.5.80.0030.05317.23
5.5.70.0090.03117.06
5.5.60.0090.04717.05
5.5.50.0030.05017.21
5.5.40.0090.04817.05
5.5.30.0070.04716.91
5.5.20.0050.04317.31
5.5.10.0070.05217.14
5.5.00.0060.03317.17
5.4.450.0100.03515.41
5.4.440.0060.04615.36
5.4.430.0080.04315.31
5.4.420.0120.04115.21
5.4.410.0060.02615.28
5.4.400.0030.04315.04
5.4.390.0030.05015.05
5.4.380.0050.04714.96
5.4.370.0030.03115.02
5.4.360.0090.03415.03
5.4.350.0080.04015.09
5.4.340.0090.04415.05
5.4.330.0060.01610.78
5.4.320.0050.03814.99
5.4.310.0080.03915.05
5.4.300.0020.04415.04
5.4.290.0050.05014.96
5.4.280.0020.04615.02
5.4.270.0060.04615.18
5.4.260.0130.04014.99
5.4.250.0100.03715.09
5.4.240.0020.03515.11
5.4.230.0050.05115.04
5.4.220.0070.04815.04
5.4.210.0030.04815.13
5.4.200.0080.04515.05
5.4.190.0070.04515.13
5.4.180.0020.04615.16
5.4.170.0080.04314.96
5.4.160.0110.04114.83
5.4.150.0020.05015.11
5.4.140.0080.03913.84
5.4.130.0100.03813.68
5.4.120.0060.04313.71
5.4.110.0050.04213.89
5.4.100.0120.04013.58
5.4.90.0030.04413.77
5.4.80.0030.04713.87
5.4.70.0030.04813.74
5.4.60.0050.03213.74
5.4.50.0050.04313.78
5.4.40.0050.04613.81
5.4.30.0080.04013.78
5.4.20.0080.02613.89
5.4.10.0050.04413.80
5.4.00.0050.03813.44
5.3.290.0070.03612.61
5.3.280.0080.04512.51
5.3.270.0050.04712.65
5.3.260.0050.03512.65
5.3.250.0100.04012.52
5.3.240.0070.04512.66
5.3.230.0150.02412.50
5.3.220.0030.05012.48
5.3.210.0050.04812.50
5.3.200.0090.04212.54
5.3.190.0020.03012.57
5.3.180.0070.04412.60
5.3.170.0020.03512.60
5.3.160.0080.04112.45
5.3.150.0080.04312.64
5.3.140.0070.05212.46
5.3.130.0080.04812.49
5.3.120.0070.04512.62
5.3.110.0020.05012.57
5.3.100.0080.04512.31
5.3.90.0070.04312.25
5.3.80.0130.04212.20
5.3.70.0070.02512.21
5.3.60.0100.03412.24
5.3.50.0030.02812.33
5.3.40.0030.03312.34
5.3.30.0070.04412.32
5.3.20.0030.04412.02
5.3.10.0080.04412.04
5.3.00.0030.04011.94
5.2.170.0000.04010.99
5.2.160.0130.05310.99
5.2.150.0030.03011.01
5.2.140.0000.03710.98
5.2.130.0030.06711.03
5.2.120.0000.06710.96
5.2.110.0070.06010.94
5.2.100.0000.06011.10
5.2.90.0000.06311.02
5.2.80.0030.05711.14
5.2.70.0100.04310.94
5.2.60.0030.03710.87
5.2.50.0100.05011.01
5.2.40.0070.03310.95
5.2.30.0030.05310.79
5.2.20.0030.06310.79
5.2.10.0100.03710.89
5.2.00.0030.06010.79
5.1.60.0030.03710.79
5.1.50.0000.04310.79
5.1.40.0030.05010.79
5.1.30.0030.05010.79
5.1.20.0070.05310.79
5.1.10.0000.06010.79
5.1.00.0030.05710.79
5.0.50.0000.04710.79
5.0.40.0100.03710.79
5.0.30.0030.06010.79
5.0.20.0000.05310.79
5.0.10.0030.04010.79
5.0.00.0030.03310.79
4.4.90.0030.03310.79
4.4.80.0100.02710.79
4.4.70.0070.03310.79
4.4.60.0000.02310.79
4.4.50.0070.03010.79
4.4.40.0070.04310.79
4.4.30.0000.02310.79
4.4.20.0030.02310.79
4.4.10.0000.02010.79
4.4.00.0030.05010.79
4.3.110.0070.03010.79
4.3.100.0000.02310.79
4.3.90.0070.02310.79
4.3.80.0000.05310.79
4.3.70.0000.02310.79
4.3.60.0030.03010.79
4.3.50.0000.02310.79
4.3.40.0000.04710.79
4.3.30.0030.03310.79
4.3.20.0000.03710.79
4.3.10.0030.03310.79
4.3.00.0000.03310.79

preferences:
39.98 ms | 401 KiB | 5 Q