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; } } } 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)
8.3.60.0070.01116.75
8.3.50.0100.00718.33
8.3.40.0070.00718.71
8.3.30.0110.00418.72
8.3.20.0080.00019.19
8.3.10.0080.00023.57
8.3.00.0030.00520.64
8.2.180.0120.00318.54
8.2.170.0150.00022.96
8.2.160.0140.00022.11
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0050.00319.77
8.2.120.0050.00326.35
8.2.110.0000.00921.04
8.2.100.0120.00017.84
8.2.90.0050.00317.72
8.2.80.0060.00318.05
8.2.70.0030.00517.80
8.2.60.0030.00618.22
8.2.50.0040.00418.10
8.2.40.0040.00419.47
8.2.30.0040.00419.27
8.2.20.0030.00618.18
8.2.10.0040.00418.23
8.2.00.0030.00517.74
8.1.280.0110.00725.92
8.1.270.0040.00418.93
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00622.01
8.1.230.0070.00320.95
8.1.220.0050.00317.74
8.1.210.0050.00318.77
8.1.200.0080.00517.23
8.1.190.0040.00417.53
8.1.180.0080.00018.10
8.1.170.0030.00518.65
8.1.160.0060.00318.88
8.1.150.0000.00818.89
8.1.140.0040.00422.15
8.1.130.0030.00320.20
8.1.120.0070.00017.50
8.1.110.0030.00417.47
8.1.100.0000.00717.44
8.1.90.0000.00817.46
8.1.80.0070.00017.35
8.1.70.0040.00417.46
8.1.60.0050.00217.52
8.1.50.0000.00817.55
8.1.40.0040.00417.42
8.1.30.0030.00517.66
8.1.20.0030.00517.52
8.1.10.0040.00417.61
8.1.00.0000.00817.41
8.0.300.0040.00419.57
8.0.290.0030.00616.63
8.0.280.0030.00318.42
8.0.270.0000.00717.16
8.0.260.0080.00018.46
8.0.250.0030.00316.98
8.0.240.0040.00416.96
8.0.230.0030.00316.93
8.0.220.0070.00316.79
8.0.210.0030.00316.85
8.0.200.0000.00716.82
8.0.190.0040.00416.98
8.0.180.0040.00416.89
8.0.170.0030.00616.91
8.0.160.0030.00316.84
8.0.150.0110.00016.85
8.0.140.0040.00416.77
8.0.130.0050.00013.33
8.0.120.0040.00416.89
8.0.110.0000.00816.89
8.0.100.0000.00716.80
8.0.90.0000.00716.94
8.0.80.0070.00916.89
8.0.70.0000.00816.96
8.0.60.0000.00716.74
8.0.50.0060.00316.90
8.0.30.0030.01717.14
8.0.20.0140.00517.40
8.0.10.0070.00016.94
8.0.00.0070.01516.78
7.4.330.0060.00015.55
7.4.320.0030.00316.58
7.4.300.0060.00016.53
7.4.290.0000.00716.59
7.4.280.0060.00316.50
7.4.270.0030.00616.52
7.4.260.0030.00316.63
7.4.250.0040.00416.45
7.4.240.0000.00716.41
7.4.230.0030.00316.40
7.4.220.0040.00416.30
7.4.210.0100.00316.47
7.4.200.0000.00716.58
7.4.160.0080.01116.54
7.4.140.0100.00617.86
7.4.130.0460.02716.61
7.4.120.0090.00816.51
7.4.110.0120.00416.57
7.4.100.0100.00616.45
7.4.90.0070.01816.62
7.4.80.0080.00819.39
7.4.70.0080.00816.58
7.4.60.0060.01016.61
7.4.50.0030.00616.31
7.4.40.0060.01116.63
7.4.00.0040.01414.93
7.3.330.0000.00513.19
7.3.320.0060.00013.17
7.3.310.0040.00416.25
7.3.300.0030.00316.31
7.3.290.0040.00416.36
7.3.280.0100.00716.31
7.3.260.0100.00816.45
7.3.240.0100.00716.44
7.3.230.0130.00316.38
7.3.210.0110.00416.45
7.3.200.0080.00816.29
7.3.190.0070.01016.29
7.3.180.0110.01116.41
7.3.170.0120.00616.57
7.3.160.0060.00916.34
7.3.120.0130.00314.58
7.3.110.0040.01214.57
7.3.100.0090.00014.62
7.3.90.0030.01014.63
7.3.80.0080.00814.40
7.3.70.0090.00614.80
7.3.60.0060.00614.62
7.3.50.0040.00814.76
7.3.40.0090.00614.93
7.3.30.0040.00814.58
7.3.20.0030.00616.56
7.3.10.0070.00716.55
7.3.00.0060.00916.53
7.2.330.0040.01616.81
7.2.320.0140.01116.52
7.2.310.0140.00316.77
7.2.300.0120.00316.41
7.2.290.0120.00616.87
7.2.250.0090.00915.33
7.2.240.0100.01014.75
7.2.230.0030.01414.96
7.2.220.0000.01115.00
7.2.210.0080.00814.86
7.2.200.0100.00614.97
7.2.190.0030.01015.04
7.2.180.0110.00714.93
7.2.170.0030.00614.98
7.2.110.0630.00714.69
7.2.100.0590.01414.91
7.2.90.0580.00614.88
7.2.80.0770.00714.85
7.2.70.0690.00814.98
7.2.60.0620.01315.06
7.2.50.0620.01014.98
7.2.40.0660.00914.88
7.2.30.0360.01014.98
7.2.20.0180.01214.85
7.2.10.0590.00614.96
7.2.00.0640.00714.89
7.1.330.0060.00915.74
7.1.320.0100.00315.95
7.1.310.0080.00815.76
7.1.300.0030.01015.73
7.1.290.0070.00715.79
7.1.280.0000.01315.92
7.1.270.0040.00915.89
7.1.260.0060.00915.60
7.1.230.1200.00714.05
7.1.220.0120.00614.11
7.1.210.0600.00914.03
7.1.200.0660.00714.03
7.1.190.0820.01013.87
7.1.180.0590.00314.00
7.1.170.0590.00613.68
7.1.160.0510.00613.75
7.1.150.0680.00713.65
7.1.140.0800.00313.57
7.1.130.1100.00614.03
7.1.120.0690.01013.46
7.1.110.0880.01013.66
7.1.100.0290.00413.75
7.1.90.0460.00313.60
7.1.80.0630.00313.55
7.1.70.0690.01013.64
7.1.60.0830.01431.87
7.1.50.1280.00631.55
7.1.40.1180.01331.68
7.1.30.1290.01731.82
7.1.20.1060.01331.67
7.1.10.1010.00713.82
7.1.00.1050.00713.93
5.6.380.0060.01114.15

preferences:
60.3 ms | 400 KiB | 5 Q