3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getSimilarSubstring($a, $b) { if(!strlen($a) || !strlen($b)) { return ''; } if(false!==strpos($a, $b)) { return $b; } $length = strlen($b); for($i=$length-1; $i>0; $i--) { for($j=0; $j<$length-$i; $j++) { if(false!==strpos($a, $result = substr($b, $j, $i))) { return $result; } } } return ''; } $word_a = "superman"; $word_b = "stermastein"; var_dump(getSimilarSubstring($word_a, $word_b));

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)
8.3.60.0140.00718.56
8.3.50.0050.01321.13
8.3.40.0110.00418.84
8.3.30.0070.01320.34
8.3.20.0080.00020.53
8.3.10.0060.00320.85
8.3.00.0070.00023.63
8.2.180.0140.00716.75
8.2.170.0070.00722.96
8.2.160.0070.00720.57
8.2.150.0080.00024.18
8.2.140.0000.00724.66
8.2.130.0080.00026.16
8.2.120.0080.00019.77
8.2.110.0040.00722.13
8.2.100.0060.00617.91
8.2.90.0080.00018.03
8.2.80.0040.00417.97
8.2.70.0030.00617.38
8.2.60.0040.00417.93
8.2.50.0090.00018.07
8.2.40.0060.00318.22
8.2.30.0040.00419.46
8.2.20.0030.00517.60
8.2.10.0040.00417.70
8.2.00.0040.00417.77
8.1.280.0150.00025.92
8.1.270.0050.00223.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00022.02
8.1.230.0070.00420.88
8.1.220.0040.00417.74
8.1.210.0030.00519.11
8.1.200.0040.00417.23
8.1.190.0000.00817.54
8.1.180.0000.00818.10
8.1.170.0060.00318.55
8.1.160.0040.00418.89
8.1.150.0040.00418.57
8.1.140.0040.00417.52
8.1.130.0030.00317.78
8.1.120.0040.00417.38
8.1.110.0040.00417.48
8.1.100.0030.00317.44
8.1.90.0000.00717.50
8.1.80.0040.00417.35
8.1.70.0060.00017.47
8.1.60.0040.00417.47
8.1.50.0060.00317.49
8.1.40.0040.00417.51
8.1.30.0040.00417.68
8.1.20.0040.00417.64
8.1.10.0000.00717.47
8.1.00.0000.00717.44
8.0.300.0070.00020.07
8.0.290.0000.00817.18
8.0.280.0070.00018.40
8.0.270.0030.00517.19
8.0.260.0000.00716.83
8.0.250.0020.00516.95
8.0.240.0030.00516.99
8.0.230.0000.00717.02
8.0.220.0030.00316.93
8.0.210.0070.00016.94
8.0.200.0060.00016.96
8.0.190.0000.00816.85
8.0.180.0040.00416.94
8.0.170.0080.00016.97
8.0.160.0040.00416.82
8.0.150.0000.00716.89
8.0.140.0000.00716.93
8.0.130.0000.00513.33
8.0.120.0040.00416.88
8.0.110.0040.00416.88
8.0.100.0040.00416.72
8.0.90.0000.00716.90
8.0.80.0100.01016.85
8.0.70.0000.00716.94
8.0.60.0000.00816.94
8.0.50.0070.00016.79
8.0.30.0110.00817.17
8.0.20.0080.01317.40
8.0.10.0040.00416.83
8.0.00.0150.00816.70
7.4.330.0000.00516.72
7.4.320.0060.00016.63
7.4.300.0000.00616.63
7.4.290.0030.00316.47
7.4.280.0030.00516.61
7.4.270.0000.00716.65
7.4.260.0030.00313.27
7.4.250.0030.00516.59
7.4.240.0030.00516.57
7.4.230.0060.00316.56
7.4.220.0100.01716.56
7.4.210.0060.01016.66
7.4.200.0030.00316.36
7.4.190.0000.00716.66
7.4.160.0100.00716.54
7.4.150.0060.01217.40
7.4.140.0110.00617.86
7.4.130.0110.00816.40
7.4.120.0110.00616.55
7.4.110.0070.01016.64
7.4.100.0060.01216.42
7.4.90.0070.01016.53
7.4.80.0120.00419.39
7.4.70.0090.01216.67
7.4.60.0110.01816.47
7.4.50.0020.00516.34
7.4.40.0040.00822.77
7.4.30.0120.00416.64
7.4.00.0000.01514.91
7.3.330.0000.00513.22
7.3.320.0060.00013.34
7.3.310.0040.00416.24
7.3.300.0070.00016.45
7.3.290.0090.01216.44
7.3.280.0100.00816.36
7.3.270.0120.00617.40
7.3.260.0090.00918.24
7.3.250.0060.01216.44
7.3.240.0130.00316.45
7.3.230.0120.00616.49
7.3.210.0150.00316.29
7.3.200.0190.00319.39
7.3.190.0090.01216.47
7.3.180.0120.00316.63
7.3.170.0090.01216.68
7.3.160.0060.00916.43
7.3.120.0170.00015.06
7.2.330.0080.01216.72
7.2.320.0130.00816.75
7.2.310.0040.01316.63
7.2.300.0120.00916.64
7.2.290.0070.01016.68
7.2.00.0040.01219.49
7.1.100.0070.00717.84
7.1.70.0000.01017.16
7.1.60.0140.01119.17
7.1.50.0060.00917.09
7.1.00.0000.03722.43
7.0.200.0000.00916.59
7.0.140.0030.07322.01
7.0.100.0030.04320.01
7.0.90.0100.03719.87
7.0.80.0030.04020.04
7.0.70.0000.04019.95
7.0.60.0000.04319.85
7.0.50.0070.03320.33
7.0.40.0100.03720.10
7.0.30.0100.04320.09
7.0.20.0100.08020.07
7.0.10.0100.07320.02
7.0.00.0170.06020.14
5.6.280.0030.07320.92
5.6.250.0000.04320.66
5.6.240.0070.04020.57
5.6.230.0030.04320.50
5.6.220.0100.04020.62
5.6.210.0100.04020.58
5.6.200.0070.05321.18
5.6.190.0070.04021.05
5.6.180.0030.08321.10
5.6.170.0030.09021.03
5.6.160.0130.08321.08
5.6.150.0070.08721.05
5.6.140.0000.05321.14
5.6.130.0030.09021.02
5.6.120.0030.08720.99
5.6.110.0070.08721.04
5.6.100.0070.08021.04
5.6.90.0030.05321.09
5.6.80.0030.06720.43
5.6.70.0100.07320.45
5.6.60.0100.08020.49
5.6.50.0030.07020.32
5.6.40.0130.07020.40
5.6.30.0030.07720.38
5.6.20.0070.08020.38
5.6.10.0070.07720.43
5.6.00.0100.04020.29
5.5.380.0030.04020.55
5.5.370.0000.04020.42
5.5.360.0070.04020.41
5.5.350.0100.03320.48
5.5.340.0030.06020.86
5.5.330.0100.07020.76
5.5.320.0030.07020.91
5.5.310.0030.05320.92
5.5.300.0130.04320.75
5.5.290.0070.08720.62
5.5.280.0100.05720.77
5.5.270.0170.07020.85
5.5.260.0030.08720.86
5.5.250.0100.08320.67
5.5.240.0100.07720.25
5.5.230.0070.08720.25
5.5.220.0100.04720.21
5.5.210.0130.06320.17
5.5.200.0100.07320.18
5.5.190.0100.06720.16
5.5.180.0100.06720.23
5.5.160.0070.07720.13
5.5.150.0130.04720.22
5.5.140.0030.06720.09
5.5.130.0130.06320.14
5.5.120.0030.05720.28
5.5.110.0200.07020.09
5.5.100.0000.08320.09
5.5.90.0030.08020.04
5.5.80.0070.07720.13
5.5.70.0200.06720.11
5.5.60.0130.06720.04
5.5.50.0130.07320.05
5.5.40.0000.07720.03
5.5.30.0130.06720.09
5.5.20.0070.06320.05
5.5.10.0000.07320.06
5.5.00.0070.08020.07
5.4.450.0100.07719.44
5.4.440.0100.07719.48
5.4.430.0130.07319.22
5.4.420.0030.06019.55
5.4.410.0130.05319.07
5.4.400.0170.06719.23
5.4.390.0030.05319.13
5.4.380.0170.06318.87
5.4.370.0130.06719.03
5.4.360.0000.08718.88
5.4.350.0030.07019.18
5.4.340.0000.05319.18
5.4.320.0030.05319.14
5.4.310.0130.03718.93
5.4.300.0030.07719.14
5.4.290.0100.06719.09
5.4.280.0070.07018.85
5.4.270.0000.07718.91
5.4.260.0070.06019.09
5.4.250.0070.07318.89
5.4.240.0000.08318.86
5.4.230.0200.06719.14
5.4.220.0030.08319.11
5.4.210.0070.06319.08
5.4.200.0030.08019.06
5.4.190.0130.07318.94
5.4.180.0130.07019.04
5.4.170.0170.06719.13
5.4.160.0030.07319.02
5.4.150.0130.07319.19
5.4.140.0070.07716.43
5.4.130.0100.07016.34
5.4.120.0100.07316.39
5.4.110.0000.07716.43
5.4.100.0030.07316.47
5.4.90.0030.07716.50
5.4.80.0100.07016.30
5.4.70.0130.07016.31
5.4.60.0030.06716.46
5.4.50.0100.03716.36
5.4.40.0230.03716.42
5.4.30.0070.04316.47
5.4.20.0100.03716.44
5.4.10.0030.07016.48
5.4.00.0030.06315.77
5.3.290.0100.06714.72
5.3.280.0100.05014.56
5.3.270.0170.07014.63
5.3.260.0070.07714.63
5.3.250.0130.07314.72
5.3.240.0070.07314.53
5.3.230.0130.07014.66
5.3.220.0030.07314.57
5.3.210.0130.07314.53
5.3.200.0000.07714.55
5.3.190.0170.07014.55
5.3.180.0070.05314.58
5.3.170.0170.07014.54
5.3.160.0100.07014.57
5.3.150.0100.07314.54
5.3.140.0100.06714.58
5.3.130.0100.04714.51
5.3.120.0100.06314.60
5.3.110.0030.07714.53
5.3.100.0070.07014.10
5.3.90.0070.07713.95
5.3.80.0070.07314.00
5.3.70.0170.06314.11
5.3.60.0070.07713.93
5.3.50.0100.06713.88
5.3.40.0000.07013.96
5.3.30.0070.06013.89
5.3.20.0170.06013.67
5.3.10.0100.06713.65
5.3.00.0000.04713.69
5.2.170.0000.05313.65
5.2.160.0030.03313.65
5.2.150.0030.06313.65
5.2.140.0030.06313.65
5.2.130.0070.05013.65
5.2.120.0070.05713.65
5.2.110.0030.05713.65
5.2.100.0070.04713.65
5.2.90.0070.04313.65
5.2.80.0130.05713.65
5.2.70.0030.05313.65
5.2.60.0030.05013.65
5.2.50.0100.04313.65
5.2.40.0070.06013.65
5.2.30.0100.05013.65
5.2.20.0000.05313.65
5.2.10.0030.06313.65
5.2.00.0130.05013.65
5.1.60.0070.05013.65
5.1.50.0070.05013.65
5.1.40.0070.04313.65
5.1.30.0030.05313.65
5.1.20.0100.05013.65
5.1.10.0070.04713.65
5.1.00.0030.05713.65
5.0.50.0070.03713.65
5.0.40.0030.04713.65
5.0.30.0100.06013.65
5.0.20.0030.04313.65
5.0.10.0030.03313.65
5.0.00.0030.04313.65
4.4.90.0000.03713.65
4.4.80.0030.03313.65
4.4.70.0000.03313.65
4.4.60.0000.04013.65
4.4.50.0070.03313.65
4.4.40.0070.05313.65
4.4.30.0030.02013.65
4.4.20.0000.04013.65
4.4.10.0030.03313.65
4.4.00.0000.06013.65
4.3.110.0000.03713.65
4.3.100.0030.02713.65
4.3.90.0030.03013.65
4.3.80.0130.04313.65
4.3.70.0030.03013.65
4.3.60.0000.03313.65
4.3.50.0000.03713.65
4.3.40.0100.04013.65
4.3.30.0030.02713.65
4.3.20.0000.03713.65
4.3.10.0000.04013.65
4.3.00.0070.02713.65

preferences:
48.53 ms | 401 KiB | 5 Q