3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/a/'; $limit = 8435; $string = 'a'; for ( $i = 0; $i <= $limit; $i++ ) { $string .= 'a'; //echo strlen($string) . "\n"; //echo mb_strlen($string); } echo strlen($string)."\n"; $str2=preg_replace('#(\w)*#', '', $string); echo $str2."\n"; echo 'done';

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)
8.3.60.0040.01216.75
8.3.50.0140.00822.19
8.3.40.0150.00619.20
8.3.30.0070.00719.06
8.3.20.0000.00820.54
8.3.10.0090.00623.87
8.3.00.0100.00019.72
8.2.180.0100.00618.56
8.2.170.0110.01122.96
8.2.160.0090.00620.78
8.2.150.0090.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0000.00917.88
8.2.110.0070.00322.55
8.2.100.0080.00318.00
8.2.90.0060.00319.42
8.2.80.0000.00818.09
8.2.70.0000.00818.13
8.2.60.0100.00318.04
8.2.50.0040.00419.75
8.2.40.0080.00019.70
8.2.30.0040.00420.18
8.2.20.0000.00818.11
8.2.10.0030.00518.50
8.2.00.0040.00418.32
8.1.280.0140.00425.92
8.1.270.0030.00520.69
8.1.260.0040.00726.35
8.1.250.0030.00528.09
8.1.240.0030.00722.85
8.1.230.0120.00317.73
8.1.220.0000.00817.93
8.1.210.0030.00518.77
8.1.200.0050.00817.72
8.1.190.0030.00617.72
8.1.180.0040.00418.10
8.1.170.0080.00019.21
8.1.160.0030.00522.32
8.1.150.0030.00619.20
8.1.140.0050.00317.95
8.1.130.0040.00418.06
8.1.120.0000.00717.95
8.1.110.0000.00717.84
8.1.100.0030.00517.82
8.1.90.0040.00417.78
8.1.80.0040.00717.80
8.1.70.0030.00617.78
8.1.60.0080.00017.98
8.1.50.0080.00017.86
8.1.40.0000.00817.97
8.1.30.0040.00418.04
8.1.20.0090.00018.09
8.1.10.0040.00417.96
8.1.00.0030.00517.89
8.0.300.0030.00618.77
8.0.290.0040.00417.25
8.0.280.0050.00218.69
8.0.270.0040.00417.57
8.0.260.0070.00017.57
8.0.250.0000.00717.37
8.0.240.0030.00317.29
8.0.230.0070.00017.30
8.0.220.0070.00017.33
8.0.210.0040.00417.39
8.0.200.0030.00617.41
8.0.190.0030.00517.39
8.0.180.0040.00417.23
8.0.170.0060.00317.36
8.0.160.0000.00717.32
8.0.150.0070.00017.26
8.0.140.0040.00417.18
8.0.130.0070.00013.74
8.0.120.0030.00517.23
8.0.110.0060.00317.28
8.0.100.0000.00817.31
8.0.90.0040.00417.16
8.0.80.0110.00417.26
8.0.70.0080.00017.28
8.0.60.0020.00517.37
8.0.50.0040.00417.39
8.0.30.0110.01017.56
8.0.20.0120.01017.48
8.0.10.0000.00817.36
8.0.00.0070.01317.15
7.4.330.0000.00515.12
7.4.320.0030.00616.96
7.4.300.0030.00316.98
7.4.290.0040.00416.82
7.4.280.0060.00316.87
7.4.270.0000.00717.05
7.4.260.0040.00416.93
7.4.250.0020.00516.93
7.4.240.0060.00216.94
7.4.230.0070.00017.11
7.4.220.0190.00616.93
7.4.210.0050.01016.98
7.4.200.0000.00816.82
7.4.160.0170.00716.83
7.4.150.0090.01017.40
7.4.140.0120.00917.86
7.4.130.0080.01416.96
7.4.120.0150.00317.04
7.4.110.0060.01316.84
7.4.100.0060.01216.75
7.4.90.0100.01316.75
7.4.80.0090.00919.39
7.4.70.0110.00616.82
7.4.60.0070.01016.90
7.4.50.0000.00816.74
7.4.40.0100.00716.92
7.4.30.0140.01216.97
7.4.00.0000.01815.50
7.3.330.0000.00513.52
7.3.320.0000.00613.66
7.3.310.0040.00416.80
7.3.300.0070.00016.75
7.3.290.0070.00016.72
7.3.280.0100.01016.82
7.3.270.0130.00617.40
7.3.260.0090.00917.15
7.3.250.0110.00617.04
7.3.240.0170.00316.80
7.3.230.0090.00916.76
7.3.210.0100.00716.94
7.3.200.0060.01217.17
7.3.190.0100.01316.63
7.3.180.0080.00917.06
7.3.170.0120.00917.18
7.3.160.0060.01016.77
7.2.330.0120.00617.14
7.2.320.0190.00916.90
7.2.310.0100.01417.01
7.2.300.0060.01017.01
7.2.290.0060.01116.99
7.2.60.0030.00917.31
7.2.00.0080.00419.73
7.1.200.0060.00815.98
7.1.100.0000.01518.57
7.1.70.0030.00617.28
7.1.60.0100.01419.13
7.1.50.0060.00917.32
7.1.00.0070.07322.52
7.0.200.0120.00415.30
7.0.60.0030.04020.14
7.0.50.0070.05318.00
7.0.40.0170.07320.16
7.0.30.0430.05320.34
7.0.20.0170.04720.21
7.0.10.0070.04720.16
7.0.00.0100.06320.16
5.6.210.0030.05728.61
5.6.200.0200.04326.17
5.6.190.0030.05028.31
5.6.180.0430.07028.27
5.6.170.0330.08728.37
5.6.160.0130.05728.28
5.6.150.0130.07326.06
5.6.140.0100.08026.15
5.6.130.0070.04326.07
5.6.120.0070.04029.02
5.6.110.0170.08029.01
5.6.100.0030.07328.95
5.6.90.0130.07329.08
5.6.80.0100.06028.49
5.6.70.4400.03728.36
5.5.350.0130.05728.39
5.5.340.0130.05725.95
5.5.330.0100.05028.09
5.5.320.0430.07328.10
5.5.310.0470.05328.04
5.5.300.0070.04325.95
5.5.290.0100.04025.95
5.5.280.0230.04728.75
5.5.270.0070.04728.66
5.5.260.0030.04328.74
5.5.250.0170.06028.53
5.5.240.0070.05728.25
5.4.450.0700.05327.14
5.4.440.0630.06327.01
5.4.430.0630.06327.18
5.4.420.0730.06027.31
5.4.410.0670.06326.86
5.4.400.1000.04726.86
5.4.390.0770.06027.03
5.4.380.0900.04726.87
5.4.370.0830.05727.01
5.4.360.0870.04726.96
5.4.350.0800.05326.87
5.4.340.0800.06027.02
5.4.320.0700.06726.86
5.4.310.0700.06026.86
5.4.300.0800.05026.48
5.4.290.1000.07026.79
5.4.280.0670.05726.88
5.4.270.0630.06026.86
5.4.260.0800.05726.51
5.4.250.0270.05326.65
5.4.240.0300.05726.95
5.4.230.0270.05026.85
5.4.220.0230.06026.88
5.4.210.0300.04726.85
5.4.200.0230.05727.00
5.4.190.0170.06026.88
5.4.180.0200.05727.01
5.4.170.0230.05326.95
5.4.160.0300.06026.47
5.4.150.0430.03726.84
5.4.140.0200.06024.13
5.4.130.0330.05324.21
5.4.120.0230.05023.98
5.4.110.0230.05324.18
5.4.100.0330.04024.26
5.4.90.0300.04324.20
5.4.80.0200.05323.49
5.4.70.0300.04723.05
5.4.60.0370.05323.15
5.4.50.0070.05323.33
5.4.40.0030.05323.38
5.4.30.0100.05023.35
5.4.20.0030.06323.11

preferences:
38.92 ms | 401 KiB | 5 Q