3v4l.org

run code in 300+ PHP versions simultaneously
<?php function prepareArray($str) { $onlyLowerLetters = preg_replace('/[^a-z]/', '', strtolower($str)); $stringArray = str_split(str_replace(' ', '', $onlyLowerLetters)); $uniqueArray = array_unique($stringArray); $countsArray = []; foreach ($uniqueArray as $letter) { $countsArray[$letter] = substr_count($onlyLowerLetters, $letter); } unset($letter); foreach ($countsArray as $k => $v) { if ($v === 1) unset($countsArray[$k]); } ksort($countsArray); reset($countsArray); return $countsArray; } function getIntersect($a1, $a2) { $ar = array_intersect($a1, $a2); $intersect = []; foreach ($ar as $k => $v) { $intersect[$k] = $v; } return $intersect; } function compareArrays($a1, $a2) { // var_export($a1); // echo "\n"; // var_export($a2); // echo "\n"; $resultArray = []; foreach ($a1 as $k => $v) { $resultArray[$k][0] = $v; if (isset($a2[$k]) && $a1[$k] > $a2[$k]) { $resultArray[$k][0] = $v; } } foreach ($a2 as $k => $v) { $resultArray[$k][1] = $v; if (isset($a1[$k]) && $a1[$k] < $a2[$k]) { $resultArray[$k][1] = $v; } } return arsort($resultArray); } function mix($s1, $s2) { $s1Prepared = prepareArray($s1); $s2Prepared = prepareArray($s2); var_export($s1Prepared); echo "\n"; var_export($s2Prepared); echo "\n"; $intersectArray = getIntersect($s1Prepared, $s2Prepared); // var_export($intersectArray); // echo "\n"; $diffArray = compareArrays(array_diff_key($s1Prepared, $intersectArray), array_diff_key($s2Prepared, $intersectArray)); var_export($diffArray); echo "\n"; // $allLetters = array_merge($diffArray, $intersectArray); // var_export($allLetters); } mix("Are they here", "yes, they are here");

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)
8.3.60.0210.00016.88
8.3.50.0070.01418.56
8.3.40.0090.00618.90
8.3.30.0060.00918.96
8.3.20.0030.00518.83
8.3.10.0040.00421.86
8.3.00.0080.00021.80
8.2.180.0150.00618.54
8.2.170.0110.00422.96
8.2.160.0110.00320.39
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0040.00419.58
8.2.120.0060.00626.35
8.2.110.0080.00422.11
8.2.100.0090.00318.15
8.2.90.0050.00318.34
8.2.80.0000.00817.97
8.2.70.0090.00017.93
8.2.60.0040.00718.34
8.2.50.0030.00618.10
8.2.40.0060.00319.43
8.2.30.0030.00619.27
8.2.20.0100.00018.18
8.2.10.0040.00418.21
8.2.00.0030.00517.83
8.1.270.0100.00723.96
8.1.260.0080.00028.09
8.1.250.0070.00028.09
8.1.240.0060.00322.23
8.1.230.0040.00719.04
8.1.220.0060.00317.80
8.1.210.0040.00418.77
8.1.200.0000.00917.48
8.1.190.0000.00817.36
8.1.180.0040.00418.10
8.1.170.0050.00318.84
8.1.160.0040.00423.82
8.1.150.0050.00318.98
8.1.140.0040.00419.62
8.1.130.0070.00017.73
8.1.120.0000.00717.50
8.1.110.0070.00017.51
8.1.100.0040.00417.64
8.1.90.0000.00717.52
8.1.80.0030.00617.62
8.1.70.0040.00417.55
8.1.60.0050.00317.70
8.1.50.0030.00617.64
8.1.40.0030.00617.70
8.1.30.0030.00517.78
8.1.20.0040.00417.64
8.1.10.0060.00317.75
8.1.00.0040.00417.68
8.0.300.0080.00019.81
8.0.290.0060.00316.88
8.0.280.0030.00318.53
8.0.270.0030.00317.29
8.0.260.0000.01117.16
8.0.250.0070.00017.01
8.0.240.0000.00717.15
8.0.230.0030.00317.14
8.0.220.0060.00316.98
8.0.210.0050.00317.07
8.0.200.0000.00616.94
8.0.190.0070.00017.15
8.0.180.0000.00717.10
8.0.170.0050.00317.07
8.0.160.0070.00016.95
8.0.150.0000.00716.88
8.0.140.0040.00316.93
8.0.130.0060.00013.45
8.0.120.0060.00316.89
8.0.110.0030.00516.83
8.0.100.0030.00516.92
8.0.90.0030.00516.98
8.0.80.0040.01217.11
8.0.70.0050.00316.86
8.0.60.0000.00717.06
8.0.50.0030.00617.08
8.0.30.0050.01217.12
8.0.20.0120.00717.47
8.0.10.0100.00017.15
8.0.00.0120.00616.99
7.4.330.0000.00515.55
7.4.320.0000.00716.78
7.4.300.0030.00316.77
7.4.290.0050.00216.82
7.4.280.0050.00316.69
7.4.270.0070.00016.68
7.4.260.0000.00716.72
7.4.250.0000.00816.78
7.4.240.0030.00516.70
7.4.230.0000.00716.81
7.4.220.0060.01516.71
7.4.210.0090.00616.69
7.4.200.0040.00416.83
7.4.160.0070.01116.65
7.4.150.0070.01117.40
7.4.140.0100.01017.86
7.4.130.0120.00616.81
7.4.120.0140.00516.72
7.4.110.0080.00816.72
7.4.100.0140.00716.70
7.4.90.0040.01316.55
7.4.80.0090.00919.39
7.4.70.0070.01016.77
7.4.60.0000.01716.66
7.4.50.0030.00816.68
7.4.40.0120.01016.38
7.4.30.0090.01016.93
7.4.10.0130.00314.88
7.4.00.0090.00615.01
7.3.330.0030.00313.31
7.3.320.0000.00613.51
7.3.310.0030.00316.54
7.3.300.0000.00716.45
7.3.290.0050.01116.52
7.3.280.0090.00816.52
7.3.270.0140.00717.40
7.3.260.0090.01116.58
7.3.250.0110.00916.69
7.3.240.0050.01216.58
7.3.230.0150.00416.66
7.3.210.0040.01316.65
7.3.200.0100.00716.43
7.3.190.0080.00816.48
7.3.180.0170.00016.53
7.3.170.0040.01316.71
7.3.160.0120.00616.63
7.3.130.0030.01614.69
7.3.120.0040.01214.80
7.3.110.0090.00915.18
7.3.100.0130.00314.71
7.3.90.0080.00414.86
7.3.80.0040.00714.81
7.3.70.0000.01814.88
7.3.60.0100.01014.59
7.3.50.0130.00614.79
7.3.40.0070.00314.83
7.3.30.0150.00014.96
7.3.20.0070.00716.83
7.3.10.0030.00916.63
7.3.00.0090.00516.71
7.2.330.0060.01217.12
7.2.320.0110.00716.84
7.2.310.0080.00816.91
7.2.300.0060.01816.91
7.2.290.0120.00616.95
7.2.260.0050.01015.11
7.2.250.0100.00315.23
7.2.240.0040.01115.35
7.2.230.0060.01215.33
7.2.220.0030.01314.98
7.2.210.0100.00715.40
7.2.200.0030.01315.25
7.2.190.0090.00615.27
7.2.180.0000.01815.20
7.2.170.0070.00715.41
7.2.160.0090.00615.08
7.2.150.0060.00816.88
7.2.140.0040.01117.18
7.2.130.0020.01017.18
7.2.120.0090.00416.98
7.2.110.0070.00517.03
7.2.100.0080.00717.13
7.2.90.0050.00817.06
7.2.80.0050.00817.20
7.2.70.0060.00416.96
7.2.60.0060.00717.05
7.2.50.0060.00717.08
7.2.40.0060.00517.07
7.2.30.0060.00617.04
7.2.20.0040.01317.30
7.2.10.0050.01017.05
7.2.00.0020.01117.82
7.1.330.0030.01216.03
7.1.320.0090.00615.97
7.1.310.0030.00916.09
7.1.300.0070.01115.99
7.1.290.0040.00715.89
7.1.280.0070.00816.11
7.1.270.0000.00915.99
7.1.260.0080.00415.73
7.1.250.0070.00916.00
7.1.240.0000.01516.01
7.1.230.0000.01315.76
7.1.220.0060.00616.14
7.1.210.0030.00815.78
7.1.200.0050.00615.96
7.1.190.0040.01115.95
7.1.180.0030.01315.68
7.1.170.0100.00316.11
7.1.160.0090.00315.87
7.1.150.0060.00615.88
7.1.140.0070.01116.11
7.1.130.0080.00815.97
7.1.120.0060.00615.91
7.1.110.0000.01416.11
7.1.100.0070.00315.94
7.1.90.0040.01115.95
7.1.80.0100.00316.08
7.1.70.0020.00616.66
7.1.60.0070.00616.79
7.1.50.0040.01215.96
7.1.40.0040.01116.02
7.1.30.0030.00616.14
7.1.20.0080.00315.83
7.1.10.0100.00016.01
7.1.00.0070.04219.22
7.0.330.0000.01315.46
7.0.320.0040.01115.45
7.0.310.0080.00415.44
7.0.300.0060.00915.55
7.0.290.0030.00915.40
7.0.280.0000.01515.37
7.0.270.0070.00715.45
7.0.260.0000.01515.59
7.0.250.0140.00015.38
7.0.240.0040.00815.35
7.0.230.0040.00815.70
7.0.220.0030.01015.53
7.0.210.0090.00315.61
7.0.200.0090.00515.29
7.0.190.0060.00615.68
7.0.180.0100.00615.55
7.0.170.0030.00615.79
7.0.160.0030.00615.59
7.0.150.0060.00615.19
7.0.140.0060.00615.58
7.0.130.0070.00715.73
7.0.120.0330.03017.98
7.0.110.0220.03617.94
7.0.100.0210.03017.92
7.0.90.0180.04017.99
7.0.80.0180.03617.99
7.0.70.0230.03218.11
7.0.60.0230.03017.97
7.0.50.0200.04117.95
7.0.40.0220.03316.98
7.0.30.0250.03217.06
7.0.20.0170.03517.07
7.0.10.0230.04017.00
7.0.00.0230.02816.95
5.6.400.0060.00614.47
5.6.390.0070.01014.23
5.6.380.0140.00014.07
5.6.370.0060.00914.82
5.6.360.0050.00514.58
5.6.350.0040.00414.53
5.6.340.0100.01014.60
5.6.330.0070.00714.37
5.6.320.0100.00314.38
5.6.310.0060.00614.66
5.6.300.0060.00614.68
5.6.290.0040.00714.73
5.6.280.0090.00614.49
5.6.270.0070.03817.55
5.6.260.0070.04417.69
5.6.250.0120.03917.74
5.6.240.0120.03217.59
5.6.230.0120.03217.66
5.6.220.0080.03317.81
5.6.210.0080.03117.69
5.6.200.0130.03217.83
5.6.190.0140.02717.73
5.6.180.0030.03717.81
5.6.170.0080.03617.51
5.6.160.0080.03117.78
5.6.150.0100.03317.78
5.6.140.0170.02517.68
5.6.130.0130.03017.66
5.6.120.0100.02917.75
5.6.110.0090.04417.68
5.6.100.0030.03817.70
5.6.90.0130.03517.71
5.6.80.0100.03017.21
5.6.70.0100.03017.18
5.6.60.0090.03217.31
5.6.50.0050.03317.27
5.6.40.0080.03017.42
5.6.30.0090.03017.30
5.6.20.0050.03617.35
5.6.10.0060.02917.37
5.6.00.0070.03117.45

preferences:
55.16 ms | 400 KiB | 5 Q