3v4l.org

run code in 300+ PHP versions simultaneously
<?php function sub_string($pattern, $subject) { $n = strlen($subject); $m = strlen($pattern); for ($i = 0; $i < $n-$m; $i++) { $j = 0; while ($j < $m && $subject[$i+$j] == $pattern[$j]) { $j++; } if ($j == $m){ return 1; }else{ return 0; } } return -1; } echo sub_string("you", "damn you");

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)
8.3.60.0100.00716.48
8.3.50.0100.00318.13
8.3.40.0130.00318.66
8.3.30.0030.01218.51
8.3.20.0080.00019.29
8.3.10.0030.00523.71
8.3.00.0080.00020.51
8.2.180.0160.00018.51
8.2.170.0090.00622.96
8.2.160.0070.00721.93
8.2.150.0030.00624.18
8.2.140.0050.00324.66
8.2.130.0070.00018.09
8.2.120.0100.00026.35
8.2.110.0090.00019.38
8.2.100.0060.00617.84
8.2.90.0040.00417.75
8.2.80.0080.00017.97
8.2.70.0000.00817.93
8.2.60.0000.00818.03
8.2.50.0000.00818.10
8.2.40.0050.00219.32
8.2.30.0000.00719.34
8.2.20.0040.00418.00
8.2.10.0000.00718.00
8.2.00.0080.00017.77
8.1.280.0090.00625.92
8.1.270.0000.00918.73
8.1.260.0080.00026.35
8.1.250.0020.00528.09
8.1.240.0060.00322.16
8.1.230.0030.00718.95
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0070.00717.00
8.1.190.0040.00417.23
8.1.180.0030.00618.10
8.1.170.0030.00618.74
8.1.160.0040.00418.79
8.1.150.0070.00018.95
8.1.140.0070.00022.14
8.1.130.0030.00322.03
8.1.120.0040.00417.36
8.1.110.0040.00417.47
8.1.100.0050.00217.45
8.1.90.0000.00717.46
8.1.80.0000.00717.48
8.1.70.0000.00717.48
8.1.60.0000.00817.60
8.1.50.0000.00817.57
8.1.40.0060.00317.47
8.1.30.0040.00417.59
8.1.20.0000.00717.54
8.1.10.0060.00317.60
8.1.00.0040.00417.54
8.0.300.0050.00218.77
8.0.290.0000.00716.75
8.0.280.0030.00318.49
8.0.270.0000.00717.18
8.0.260.0040.00218.48
8.0.250.0070.00016.96
8.0.240.0050.00317.00
8.0.230.0000.00716.93
8.0.220.0000.01216.93
8.0.210.0030.00316.93
8.0.200.0070.00016.99
8.0.190.0030.00317.00
8.0.180.0040.00416.92
8.0.170.0000.00816.88
8.0.160.0030.00316.89
8.0.150.0040.00716.71
8.0.140.0000.00716.84
8.0.130.0060.00013.29
8.0.120.0060.00316.84
8.0.110.0040.00416.96
8.0.100.0040.00416.84
8.0.90.0040.00416.93
8.0.80.0070.01216.90
8.0.70.0070.00016.78
8.0.60.0040.00416.86
8.0.50.0000.00816.95
8.0.30.0070.01016.97
8.0.20.0160.00317.40
8.0.10.0040.00416.95
8.0.00.0060.01316.85
7.4.330.0000.00415.55
7.4.320.0030.00316.65
7.4.300.0050.00216.49
7.4.290.0000.00716.58
7.4.280.0070.00016.39
7.4.270.0030.00316.36
7.4.260.0070.00016.48
7.4.250.0030.00516.48
7.4.240.0080.00016.59
7.4.230.0070.00016.67
7.4.220.0040.00416.63
7.4.210.0050.01316.55
7.4.200.0070.00016.61
7.4.160.0050.01216.42
7.4.140.0080.00917.86
7.4.130.0110.00616.43
7.4.120.0090.00816.53
7.4.110.0110.00716.53
7.4.100.0100.00716.43
7.4.90.0090.01216.56
7.4.80.0090.00919.39
7.4.70.0100.00716.38
7.4.60.0070.01016.41
7.4.50.0040.00816.39
7.4.40.0060.01016.30
7.4.00.0070.01014.76
7.3.330.0000.00613.35
7.3.320.0060.00013.35
7.3.310.0030.00616.19
7.3.300.0070.00016.23
7.3.290.0030.00316.36
7.3.280.0080.00816.32
7.3.260.0090.01116.41
7.3.240.0110.00716.52
7.3.230.0200.00016.32
7.3.210.0030.01316.33
7.3.200.0140.00316.71
7.3.190.0100.00716.45
7.3.180.0100.00716.41
7.3.170.0110.01116.39
7.3.160.0030.01316.45
7.3.10.0040.00916.26
7.3.00.0030.01316.40
7.2.330.0100.00716.55
7.2.320.0150.00916.77
7.2.310.0080.01216.38
7.2.300.0090.00816.44
7.2.290.0150.00316.31
7.2.130.0110.00716.49
7.2.120.0090.01216.80
7.2.110.0180.00415.70
7.2.100.0090.00715.52
7.2.90.0460.01215.66
7.2.80.0760.01515.79
7.2.70.0570.00615.75
7.2.60.0480.00815.86
7.2.50.0830.00515.59
7.2.40.0600.00715.75
7.2.30.0750.00315.80
7.2.20.0160.00815.64
7.2.10.0620.00815.81
7.2.00.0720.01015.79
7.1.250.0000.01015.64
7.1.230.0730.00913.70
7.1.220.0150.00513.85
7.1.210.0100.01013.81
7.1.200.0900.01013.56
7.1.190.1260.00013.71
7.1.180.0900.01313.56
7.1.170.0820.00613.54
7.1.160.1120.00713.70
7.1.150.1050.00313.44
7.1.140.0620.00713.72
7.1.130.0910.00713.43
7.1.120.1380.00313.72
7.1.110.1110.00313.82
7.1.100.0720.00413.73
7.1.90.0760.00813.88
7.1.80.0360.00613.96
7.1.70.0340.00713.77
7.1.60.0630.00731.52
7.1.50.0740.00331.74
7.1.40.1450.01631.70
7.1.30.0240.01631.62
7.1.20.0370.00631.67
7.1.10.0340.00713.79
7.1.00.0070.01013.66
5.6.380.0140.00414.22

preferences:
35.05 ms | 400 KiB | 5 Q