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) || $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)
7.2.120.0000.01416.80
7.2.110.0100.00616.64
7.2.100.0000.01416.39
7.2.90.0040.01116.66
7.2.80.0060.00616.77
7.2.70.0080.00416.92
7.2.60.0100.00317.02
7.2.50.0070.00716.68
7.2.40.0120.00616.79
7.2.30.0130.00016.88
7.2.20.0030.00917.02
7.2.10.0100.00316.89
7.2.00.0030.00916.97
7.1.240.0000.01715.80
7.1.230.0070.00415.90
7.1.220.0030.01215.88
7.1.210.0030.00915.72
7.1.200.0070.00415.89
7.1.190.0000.01615.55
7.1.180.0030.00715.84
7.1.170.0040.01115.75
7.1.160.0030.00915.68
7.1.150.0070.00715.86
7.1.140.0000.01115.96
7.1.130.0070.00715.90
7.1.120.0000.01015.70
7.1.110.0070.00715.96
7.1.100.0040.01116.00
7.1.90.0030.00915.95
7.1.80.0060.00615.79
7.1.70.0030.00816.37
7.1.60.0090.01117.45
7.1.50.0130.01516.19
7.1.40.0040.00815.82
7.1.30.0000.01715.95
7.1.20.0040.01215.86
7.1.10.0070.00415.77
7.1.00.0050.02519.09
7.0.320.0060.00615.46
7.0.310.0030.01015.62
7.0.300.0000.01015.50
7.0.290.0110.00415.61
7.0.280.0080.00415.42
7.0.270.0080.00415.45
7.0.260.0000.01715.12
7.0.250.0090.00615.50
7.0.240.0050.00315.48
7.0.230.0000.01615.59
7.0.220.0090.00315.14
7.0.210.0060.00615.51
7.0.200.0040.00716.28
7.0.190.0090.00615.39
7.0.180.0040.00815.48
7.0.170.0090.00615.32
7.0.160.0080.00315.51
7.0.150.0030.00915.50
7.0.140.0050.04318.78
7.0.130.0090.00315.44
7.0.120.0040.00715.59
7.0.110.0070.00315.48
7.0.100.0090.00615.38
7.0.90.0210.02017.83
7.0.80.0220.02917.55
7.0.70.0110.02617.53
7.0.60.0100.02717.71
7.0.50.0230.01817.85
7.0.40.0060.03816.87
7.0.30.0060.04616.71
7.0.20.0030.05016.80
7.0.10.0100.04416.81
7.0.00.0100.04316.62
5.6.380.0030.01414.29
5.6.370.0090.00914.42
5.6.360.0090.00914.47
5.6.350.0070.01014.42
5.6.340.0120.00514.44
5.6.330.0150.00414.36
5.6.320.0060.01214.21
5.6.310.0000.01914.36
5.6.300.0060.00814.22
5.6.290.0090.00914.28
5.6.280.0080.04117.64
5.6.270.0080.01214.59
5.6.260.0080.00814.41
5.6.250.0120.00514.23
5.6.240.0070.01114.49
5.6.230.0130.03617.35
5.6.220.0070.02517.59
5.6.210.0080.02217.46
5.6.200.0010.02617.68
5.6.190.0150.03517.73
5.6.180.0100.04517.69
5.6.170.0100.04017.62
5.6.160.0080.05017.72
5.6.150.0100.04517.82
5.6.140.0110.04617.68
5.6.130.0050.05217.62
5.6.120.0030.05217.56
5.6.110.0140.03017.70
5.6.100.0090.04717.74
5.6.90.0060.04717.70
5.6.80.0130.04017.43
5.6.70.0090.03117.19
5.6.60.0080.05017.40
5.6.50.0060.04817.28
5.6.40.0050.03517.25
5.6.30.0070.02917.33
5.6.20.0050.03517.20
5.6.10.0050.03017.38
5.6.00.0070.03117.31
5.5.380.0000.01411.21
5.5.370.0020.02815.82
5.5.360.0080.04115.90
5.5.350.0060.02615.91
5.5.340.0100.04316.02
5.5.330.0120.04116.00
5.5.320.0070.05215.97
5.5.310.0070.03315.90
5.5.300.0070.04316.06
5.5.290.0050.04916.05
5.5.280.0070.02516.04
5.5.270.0030.05116.07
5.5.260.0080.04115.96
5.5.250.0060.03515.94
5.5.240.0030.04715.68
5.5.230.0050.03115.65
5.5.220.0130.04015.64
5.5.210.0070.02815.73
5.5.200.0090.04415.68
5.5.190.0040.02915.73
5.5.180.0110.02715.78
5.5.170.0080.00914.19
5.5.160.0110.04215.70
5.5.150.0080.04515.73
5.5.140.0080.04515.69
5.5.130.0050.02415.67
5.5.120.0020.05015.73
5.5.110.0070.02815.78
5.5.100.0050.02815.65
5.5.90.0070.03515.68
5.5.80.0070.04215.70
5.5.70.0040.03315.61
5.5.60.0090.04715.73
5.5.50.0160.03815.54
5.5.40.0070.04615.72
5.5.30.0050.04915.68
5.5.20.0180.03515.55
5.5.10.0040.04415.63
5.5.00.0140.02615.58
5.4.450.0080.03915.33
5.4.440.0130.04315.29
5.4.430.0050.04915.12
5.4.420.0030.04815.38
5.4.410.0110.04615.17
5.4.400.0020.03415.08
5.4.390.0100.04215.11
5.4.380.0100.04215.16
5.4.370.0100.04115.13
5.4.360.0070.04615.16
5.4.350.0090.02215.14
5.4.340.0060.02514.97
5.4.330.0070.00711.11
5.4.320.0050.03315.03
5.4.310.0050.04715.00
5.4.300.0060.03015.17
5.4.290.0060.02615.14
5.4.280.0120.04315.15
5.4.270.0100.02815.20
5.4.260.0080.02515.05
5.4.250.0120.01815.12
5.4.240.0090.04315.15
5.4.230.0070.04615.14
5.4.220.0160.03915.10
5.4.210.0070.03015.15
5.4.200.0100.04514.96
5.4.190.0140.04115.15
5.4.180.0070.04515.08
5.4.170.0100.04415.05
5.4.160.0070.03215.19
5.4.150.0070.04815.12
5.4.140.0060.02913.75
5.4.130.0110.03913.75
5.4.120.0110.04113.73
5.4.110.0050.04713.70
5.4.100.0070.04013.77
5.4.90.0060.03813.91
5.4.80.0090.04113.70
5.4.70.0100.02213.72
5.4.60.0120.03813.75
5.4.50.0090.03813.71
5.4.40.0070.04413.82
5.4.30.0090.04213.80
5.4.20.0070.04413.82
5.4.10.0120.03913.71
5.4.00.0070.04113.47
5.3.290.0050.04612.93
5.3.280.0050.04412.83
5.3.270.0030.04912.86
5.3.260.0090.02812.85
5.3.250.0110.03812.83
5.3.240.0050.03812.86
5.3.230.0050.05012.85
5.3.220.0050.04312.84
5.3.210.0100.04312.89
5.3.200.0130.03812.78
5.3.190.0070.04212.79
5.3.180.0080.03312.84
5.3.170.0070.02612.83
5.3.160.0090.04212.78
5.3.150.0110.03812.83
5.3.140.0100.04012.80
5.3.130.0070.04112.85
5.3.120.0100.03812.79
5.3.110.0030.04612.88
5.3.100.0030.04312.53
5.3.90.0070.02912.63
5.3.80.0100.03412.51
5.3.70.0050.02712.58
5.3.60.0060.03512.53
5.3.50.0070.02212.48
5.3.40.0090.02712.54
5.3.30.0050.03312.52
5.3.20.0100.03812.43
5.3.10.0090.03912.37
5.3.00.0070.03212.35
5.2.170.0080.02012.34
5.2.160.0080.03212.34
5.2.150.0050.03412.34
5.2.140.0050.02812.34
5.2.130.0100.02712.34
5.2.120.0060.03112.34
5.2.110.0120.02712.34
5.2.100.0030.03512.34
5.2.90.0040.03012.34
5.2.80.0140.02512.34
5.2.70.0100.03012.34
5.2.60.0120.02812.34
5.2.50.0040.03112.34
5.2.40.0080.03312.34
5.2.30.0110.02612.34
5.2.20.0030.03312.34
5.2.10.0050.02912.34
5.2.00.0000.03112.34
5.1.60.0040.01912.34
5.1.50.0050.02312.34
5.1.40.0070.02712.34
5.1.30.0020.02712.34
5.1.20.0100.01612.34
5.1.10.0070.03012.34
5.1.00.0060.02712.34
5.0.50.0030.02612.34
5.0.40.0040.02312.34
5.0.30.0040.03112.34
5.0.20.0010.02512.34
5.0.10.0040.01712.34
5.0.00.0040.03312.34
4.4.90.0040.02012.34
4.4.80.0000.02012.34
4.4.70.0050.01912.34
4.4.60.0020.02212.34
4.4.50.0020.01812.34
4.4.40.0060.02012.34
4.4.30.0020.01312.34
4.4.20.0020.02112.34
4.4.10.0030.02012.34
4.4.00.0000.02712.34
4.3.110.0010.01912.34
4.3.100.0050.01912.34
4.3.90.0030.01312.34
4.3.80.0010.01812.34
4.3.70.0020.01312.34
4.3.60.0040.01712.34
4.3.50.0020.02012.34
4.3.40.0030.02012.34
4.3.30.0000.01812.34
4.3.20.0030.01812.34
4.3.10.0020.01212.34
4.3.00.0010.01912.34

preferences:
68.38 ms | 401 KiB | 5 Q