3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (defined('HHVM_VERSION')) { exit; } // https://www.mail-archive.com/internals@lists.php.net/msg87079.html function str_begins($a, $b) { return substr_compare($a, $b, 0, strlen($b)) === 0; } function str_ends($a, $b) { return substr_compare($a, $b, -strlen($b)) === 0; } // Let's test edge cases $funcs = [ 'str_begins', 'str_ends', ]; $tests = [ // array(array($main, $part), $expected) array(array("foo", "foo"), true), array(array("foo", ""), true), array(array("", "foo"), false), array(array("", ""), true), ]; foreach ($funcs as $func) { foreach ($tests as list(list($main, $part), $expected)) { echo $func . '(' . var_export($main, true) . ', ' . var_export($part, true) . '):' . PHP_EOL; echo " - Expected: "; var_dump($expected); echo " - Actual: "; var_dump($actual = $func($main, $part)); if ($actual !== $expected) { echo " => DIFF!" . PHP_EOL; } echo PHP_EOL; } echo PHP_EOL; }

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)
8.3.40.0090.00618.68
8.3.30.0150.00018.79
8.3.20.0070.00020.34
8.3.10.0040.00423.52
8.3.00.0050.00319.80
8.2.170.0120.00322.96
8.2.160.0030.01019.08
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0050.00219.31
8.2.120.0060.00326.35
8.2.110.0030.00822.13
8.2.100.0080.00417.91
8.2.90.0030.00519.35
8.2.80.0040.00418.16
8.2.70.0000.00817.63
8.2.60.0080.00017.93
8.2.50.0080.00018.10
8.2.40.0030.00620.59
8.2.30.0030.00619.24
8.2.20.0000.00718.00
8.2.10.0000.00718.09
8.2.00.0070.00018.01
8.1.270.0080.00022.14
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00919.19
8.1.230.0040.00719.10
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0080.00317.25
8.1.190.0080.00017.23
8.1.180.0030.00618.10
8.1.170.0040.00418.43
8.1.160.0040.00419.07
8.1.150.0040.00418.98
8.1.140.0030.00619.59
8.1.130.0070.00018.94
8.1.120.0040.00417.42
8.1.110.0080.00017.36
8.1.100.0070.00317.44
8.1.90.0030.00517.34
8.1.80.0000.00817.48
8.1.70.0000.00717.51
8.1.60.0050.00317.55
8.1.50.0000.00917.35
8.1.40.0070.00417.41
8.1.30.0000.00817.69
8.1.20.0040.00417.57
8.1.10.0030.00517.55
8.1.00.0000.00817.40
8.0.300.0040.00420.09
8.0.290.0000.00816.75
8.0.280.0070.00018.45
8.0.270.0000.00717.27
8.0.260.0030.00316.73
8.0.250.0070.00016.99
8.0.240.0100.00016.86
8.0.230.0020.00516.85
8.0.220.0000.00716.78
8.0.210.0030.00316.91
8.0.200.0030.00316.84
8.0.190.0030.00516.93
8.0.180.0040.00416.88
8.0.170.0060.00316.89
8.0.160.0000.00716.88
8.0.150.0030.00516.87
8.0.140.0040.00416.88
8.0.130.0030.00313.41
8.0.120.0040.00416.77
8.0.110.0070.00016.85
8.0.100.0060.00316.89
8.0.90.0040.00416.85
8.0.80.0040.01816.95
8.0.70.0000.00816.96
8.0.60.0000.00716.85
8.0.50.0040.00416.74
8.0.30.0070.01117.04
8.0.20.0130.00817.40
8.0.10.0000.00816.96
8.0.00.0060.01216.51
7.4.330.0020.00215.55
7.4.320.0030.00316.51
7.4.300.0030.00316.57
7.4.290.0070.00316.64
7.4.280.0060.00316.50
7.4.270.0030.00316.65
7.4.260.0000.00716.53
7.4.250.0090.00016.49
7.4.240.0040.00416.41
7.4.230.0030.00316.50
7.4.220.0100.00716.59
7.4.210.0160.00316.52
7.4.200.0070.00016.39
7.4.160.0130.00616.54
7.4.150.0170.01017.40
7.4.140.0110.01017.86
7.4.130.0150.00916.60
7.4.120.0040.01616.50
7.4.110.0100.01016.73
7.4.100.0070.01016.41
7.4.90.0030.01516.48
7.4.80.0100.00719.39
7.4.70.0080.01116.55
7.4.60.0100.00816.52
7.4.50.0080.00216.37
7.4.40.0090.00916.53
7.4.30.0030.01516.57
7.4.10.0120.00314.94
7.4.00.0070.00814.88
7.3.330.0050.00013.36
7.3.320.0020.00213.14
7.3.310.0080.00016.40
7.3.300.0000.00716.23
7.3.290.0060.00816.33
7.3.280.0080.00716.36
7.3.270.0130.00817.40
7.3.260.0080.01016.55
7.3.250.0070.01016.44
7.3.240.0110.00816.34
7.3.230.0120.00516.50
7.3.210.0060.01116.38
7.3.200.0080.00916.60
7.3.190.0070.01016.54
7.3.180.0070.01016.53
7.3.170.0060.01016.36
7.3.160.0130.00716.51
7.3.130.0030.01314.82
7.3.120.0060.01214.82
7.3.110.0070.01114.65
7.3.100.0070.00914.81
7.3.90.0050.01014.84
7.3.80.0090.00514.84
7.3.70.0070.00514.76
7.3.60.0050.01114.86
7.3.50.0110.00514.80
7.3.40.0090.00414.70
7.3.30.0070.00614.75
7.3.20.0080.00616.65
7.3.10.0010.00916.83
7.3.00.0050.00816.81
7.2.330.0140.00516.76
7.2.320.0100.00716.84
7.2.310.0060.00916.50
7.2.300.0100.00716.47
7.2.290.0150.00416.59
7.2.260.0100.01014.96
7.2.250.0070.01315.33
7.2.240.0080.01115.10
7.2.230.0050.01015.10
7.2.220.0040.01114.98
7.2.210.0050.01115.12
7.2.200.0040.01015.13
7.2.190.0050.01114.89
7.2.180.0050.01115.04
7.2.170.0050.01015.18
7.2.160.0030.01014.98
7.2.150.0030.00817.09
7.2.140.0100.00716.95
7.2.130.0080.00416.69
7.2.120.0100.00316.91
7.2.110.0070.00716.93
7.2.100.0070.00716.87
7.2.90.0030.00716.85
7.2.80.0090.00617.02
7.2.70.0050.00817.01
7.2.60.0070.00516.94
7.2.50.0050.00516.80
7.2.40.0110.00417.09
7.2.30.0030.01316.70
7.2.20.0000.01016.69
7.2.10.0130.00016.91
7.2.00.0040.01017.94
7.1.330.0080.00815.93
7.1.320.0030.01115.81
7.1.310.0100.00715.85
7.1.300.0070.00715.81
7.1.290.0060.00815.88
7.1.280.0100.00315.79
7.1.270.0020.01215.67
7.1.260.0020.00815.73
7.1.250.0080.00315.78
7.1.240.0070.01016.02
7.1.230.0030.00615.51
7.1.220.0000.01315.98
7.1.210.0050.00515.93
7.1.200.0050.00715.84
7.1.190.0000.00815.84
7.1.180.0030.00515.82
7.1.170.0030.01015.82
7.1.160.0000.01315.76
7.1.150.0080.00416.02
7.1.140.0070.00415.76
7.1.130.0080.00315.84
7.1.120.0030.00715.91
7.1.110.0070.00715.89
7.1.100.0020.01016.95
7.1.90.0090.00615.78
7.1.80.0140.00415.79
7.1.70.0310.01015.71
7.1.60.0310.01124.48
7.1.50.0290.01524.31
7.1.40.0330.01224.09
7.1.30.0310.01624.22
7.1.20.0310.01624.28
7.1.10.0360.00615.31
7.1.00.0260.00915.50
7.0.330.0040.00815.42
7.0.320.0000.00915.38
7.0.310.0060.00315.52
7.0.300.0080.00815.50
7.0.290.0030.01015.49
7.0.280.0040.00815.53
7.0.270.0030.00715.36
7.0.260.0040.00415.54
7.0.250.0060.00615.16
7.0.240.0100.00615.27
7.0.230.0100.00715.64
7.0.220.0100.00715.59
7.0.210.0070.00315.44
7.0.200.0270.01215.20
7.0.190.0300.01215.22
7.0.180.0370.00614.82
7.0.170.0330.01414.92
7.0.160.0360.01414.92
7.0.150.0410.00615.02
7.0.140.0210.00814.84
7.0.130.0330.01015.15
7.0.120.0270.00815.14
7.0.110.0260.00815.00
7.0.100.0170.01014.88
7.0.90.0270.01014.93
7.0.80.0310.01115.06
7.0.70.0270.01214.81
7.0.60.0340.01914.96
7.0.50.0370.00515.03
7.0.40.0210.01214.00
7.0.30.0260.00714.05
7.0.20.0230.00814.02
7.0.10.0310.01113.92
7.0.00.0310.00714.16
5.6.400.0070.00714.44
5.6.390.0110.00314.06
5.6.380.0070.01014.41
5.6.370.0030.00914.32
5.6.360.0100.00614.69
5.6.350.0030.00714.71
5.6.340.0110.00014.36
5.6.330.0070.01014.32
5.6.320.0070.00414.65
5.6.310.0000.00914.19
5.6.300.0080.00614.39
5.6.290.0130.00314.38
5.6.280.0060.00614.48
5.6.270.0030.00614.47
5.6.260.0040.00414.67
5.6.250.0090.00614.46
5.6.240.0090.00614.39
5.6.230.0000.01514.54
5.6.220.0060.00614.65
5.6.210.0040.00714.32
5.6.200.0060.00914.41
5.6.190.0070.00714.54
5.6.180.0060.00614.62
5.6.170.0040.00714.40
5.6.160.0090.00614.48
5.6.150.0070.00314.46
5.6.140.0030.01014.44
5.6.130.0090.00614.39
5.6.120.0070.00714.53
5.6.110.0060.00914.13
5.6.100.0070.00714.45
5.6.90.0030.00914.42
5.6.80.0060.00614.39
5.6.70.0040.00714.24
5.6.60.0000.01114.03
5.6.50.0120.00014.51
5.6.40.0080.00414.41
5.6.30.0060.00614.32
5.6.20.0060.01214.52
5.6.10.0000.01514.27
5.6.00.0040.00714.18

preferences:
58.65 ms | 400 KiB | 5 Q