3v4l.org

run code in 300+ PHP versions simultaneously
<?php function similarity($str1, $str2) { $len1 = strlen($str1); $len2 = strlen($str2); $max = max($len1, $len2); $similarity = $i = $j = 0; while (($i < $len1) && isset($str2[$j])) { if ($str1[$i] == $str2[$j]) { $similarity++; $i++; $j++; } elseif ($len1 < $len2) { $len1++; $j++; } elseif ($len1 > $len2) { $i++; $len1--; } else { $i++; $j++; } } return round($similarity / $max, 2); } $str1 = '12345678901234567890'; $str2 = '12345678991234567890'; echo 'Similarity: ' . (similarity($str1, $str2) * 100) . '%'; ?>

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)
8.3.70.0140.01016.63
8.3.60.0100.00618.40
8.3.50.0110.00417.99
8.3.40.0100.01018.84
8.3.30.0110.01118.72
8.3.20.0080.00021.94
8.3.10.0080.00023.64
8.3.00.0070.00023.64
8.2.190.0070.01116.58
8.2.180.0090.00916.63
8.2.170.0140.00722.96
8.2.160.0120.00320.55
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00018.03
8.2.120.0040.00426.35
8.2.110.0050.00522.44
8.2.100.0110.00017.82
8.2.90.0040.00417.75
8.2.80.0050.00517.97
8.2.70.0040.00418.05
8.2.60.0070.00018.22
8.2.50.0000.00818.10
8.2.40.0000.00719.46
8.2.30.0000.00819.33
8.2.20.0000.00719.84
8.2.10.0070.00019.46
8.2.00.0080.00019.36
8.1.280.0100.00325.92
8.1.270.0060.01019.00
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.64
8.1.230.0060.00617.83
8.1.220.0090.00017.79
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0040.00419.27
8.1.180.0040.00418.10
8.1.170.0030.00618.59
8.1.160.0000.00718.98
8.1.150.0000.00718.94
8.1.140.0050.00224.03
8.1.130.0040.00420.26
8.1.120.0000.00717.48
8.1.110.0000.00717.42
8.1.100.0000.00717.47
8.1.90.0000.00717.52
8.1.80.0040.00417.48
8.1.70.0030.00317.58
8.1.60.0000.00817.57
8.1.50.0080.00317.55
8.1.40.0000.00717.61
8.1.30.0070.00017.79
8.1.20.0040.00417.70
8.1.10.0030.00517.59
8.1.00.0040.00417.59
8.0.300.0040.00421.64
8.0.290.0040.00416.75
8.0.280.0000.00818.59
8.0.270.0000.00717.27
8.0.260.0000.00618.41
8.0.250.0030.00317.10
8.0.240.0000.00617.04
8.0.230.0070.00017.01
8.0.220.0070.00316.96
8.0.210.0000.00717.00
8.0.200.0000.00616.96
8.0.190.0000.00717.02
8.0.180.0000.00816.94
8.0.170.0030.00617.01
8.0.160.0040.00417.04
8.0.150.0070.00016.93
8.0.140.0040.00416.93
8.0.130.0070.00013.37
8.0.120.0040.00416.87
8.0.110.0040.00416.82
8.0.100.0080.00016.78
8.0.90.0040.00417.10
8.0.80.0080.00817.03
8.0.70.0030.00516.98
8.0.60.0040.00416.94
8.0.50.0040.00416.94
8.0.30.0120.00717.19
8.0.20.0060.01317.26
8.0.10.0030.00516.99
8.0.00.0110.01016.71
7.4.330.0050.00015.55
7.4.320.0060.00016.63
7.4.300.0000.00816.64
7.4.290.0070.00016.57
7.4.280.0050.00316.64
7.4.270.0000.00716.57
7.4.260.0040.00416.72
7.4.250.0030.00316.51
7.4.240.0040.00416.56
7.4.230.0030.00316.59
7.4.220.0040.00416.75
7.4.210.0090.00616.52
7.4.200.0000.00716.77
7.4.160.0100.00816.56
7.4.140.0080.01217.86
7.4.130.0110.00616.45
7.4.120.0000.01816.51
7.4.110.0070.01416.40
7.4.100.0120.00616.70
7.4.90.0110.00816.49
7.4.80.0140.00719.39
7.4.70.0030.01316.58
7.4.60.0040.01316.61
7.4.50.0030.01316.48
7.4.40.0060.01016.64
7.4.00.0030.01315.00
7.3.330.0000.00513.20
7.3.320.0060.00013.45
7.3.310.0000.00716.43
7.3.300.0000.00616.43
7.3.290.0040.00416.29
7.3.280.0110.00816.46
7.3.260.0150.00516.61
7.3.240.0060.01116.42
7.3.230.0120.00816.61
7.3.210.0070.01016.54
7.3.200.0090.00916.53
7.3.190.0090.01316.52
7.3.180.0060.01016.61
7.3.170.0160.00516.38
7.3.160.0080.00816.42
7.3.00.2500.00714.41
7.2.330.0090.00916.78
7.2.320.0140.00316.84
7.2.310.0100.00716.96
7.2.300.0130.01016.59
7.2.290.0090.00916.89
7.2.130.2150.00714.84
7.2.120.3790.01014.71
7.2.110.2460.00714.74
7.2.100.1850.01014.71
7.2.90.1560.01014.88
7.2.80.1590.00714.80
7.2.70.2260.01615.06
7.2.60.1710.00315.22
7.2.50.1490.01714.77
7.2.40.2440.01415.02
7.2.30.1470.01914.91
7.2.20.1700.00715.03
7.2.10.1600.00714.82
7.2.00.1880.01014.79
7.1.250.2640.01014.00
7.0.330.1790.00313.50
5.6.380.0000.01914.12

preferences:
57.69 ms | 401 KiB | 5 Q