3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/\w*/'; $limit = 10000; $string = 'a'; for ( $i = 0; $i <= $limit; $i++ ) { $string .= 'a'; //echo strlen($string) . "\n"; //echo mb_strlen($string); } echo strlen($string)."\n"; preg_replace($pattern, '', $string); echo strlen($string)."\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)
8.3.60.0160.00317.00
8.3.50.0090.01122.06
8.3.40.0040.01118.98
8.3.30.0030.01219.23
8.3.20.0180.00020.17
8.3.10.0000.00823.46
8.3.00.0040.00419.79
8.2.180.0120.00925.92
8.2.170.0130.00719.33
8.2.160.0100.00322.96
8.2.150.0040.00425.66
8.2.140.0030.00624.66
8.2.130.0080.00026.16
8.2.120.0040.00418.00
8.2.110.0090.00019.35
8.2.100.0060.00618.00
8.2.90.0030.00619.50
8.2.80.0030.00618.00
8.2.70.0060.00318.00
8.2.60.0030.00718.18
8.2.50.0060.00318.07
8.2.40.0030.00519.57
8.2.30.0030.00519.92
8.2.20.0080.00017.98
8.2.10.0040.00418.14
8.2.00.0070.00018.13
8.1.280.0130.00325.92
8.1.270.0080.00024.66
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0040.00419.28
8.1.230.0090.00317.61
8.1.220.0080.00017.89
8.1.210.0050.00518.77
8.1.200.0030.00717.63
8.1.190.0000.00817.35
8.1.180.0000.00818.10
8.1.170.0040.00418.82
8.1.160.0070.00022.14
8.1.150.0000.00819.00
8.1.140.0080.00017.63
8.1.130.0000.00717.89
8.1.120.0030.00517.71
8.1.110.0000.00717.74
8.1.100.0030.00617.63
8.1.90.0000.00717.70
8.1.80.0050.00517.71
8.1.70.0030.00317.77
8.1.60.0040.00417.88
8.1.50.0080.00017.74
8.1.40.0030.00617.83
8.1.30.0090.00017.88
8.1.20.0080.00017.96
8.1.10.0030.00517.84
8.1.00.0040.00417.68
8.0.300.0060.00318.77
8.0.290.0030.00617.00
8.0.280.0000.00718.57
8.0.270.0040.00417.29
8.0.260.0000.00717.25
8.0.250.0000.00717.29
8.0.240.0070.00017.26
8.0.230.0040.00417.24
8.0.220.0000.00717.27
8.0.210.0030.00317.16
8.0.200.0060.00317.16
8.0.190.0040.00417.31
8.0.180.0000.00817.21
8.0.170.0000.00917.18
8.0.160.0080.00017.07
8.0.150.0040.00417.13
8.0.140.0030.00517.06
8.0.130.0030.00313.67
8.0.120.0040.00417.14
8.0.110.0030.00517.23
8.0.100.0040.00417.03
8.0.90.0070.00017.02
8.0.80.0090.00917.25
8.0.70.0040.00417.07
8.0.60.0080.00017.10
8.0.50.0080.00017.00
8.0.30.0130.00717.39
8.0.20.0080.01117.40
8.0.10.0040.00417.09
8.0.00.0090.01017.06
7.4.330.0000.00515.10
7.4.320.0100.00016.75
7.4.300.0000.00716.86
7.4.290.0040.00416.73
7.4.280.0080.00016.73
7.4.270.0000.00716.78
7.4.260.0040.00416.70
7.4.250.0030.00516.71
7.4.240.0030.00316.71
7.4.230.0040.00316.81
7.4.220.0160.01216.78
7.4.210.0100.01016.85
7.4.200.0040.00416.89
7.4.160.0000.01816.84
7.4.150.0100.00917.40
7.4.140.0070.01417.86
7.4.130.0100.00916.88
7.4.120.0120.00716.75
7.4.110.0090.01016.75
7.4.100.0110.01116.81
7.4.90.0140.00616.90
7.4.80.0200.00019.39
7.4.70.0090.00816.80
7.4.60.0100.00716.79
7.4.50.0090.00016.87
7.4.40.0070.01116.90
7.4.30.0090.00916.93
7.4.00.0110.00415.15
7.3.330.0000.00513.54
7.3.320.0000.00613.48
7.3.310.0000.00716.49
7.3.300.0030.00316.60
7.3.290.0030.00416.55
7.3.280.0040.01216.66
7.3.270.0100.01017.40
7.3.260.0150.00316.76
7.3.250.0110.01016.63
7.3.240.0100.00716.88
7.3.230.0100.01716.59
7.3.210.0090.00916.66
7.3.200.0100.01316.61
7.3.190.0100.00616.91
7.3.180.0100.00716.96
7.3.170.0070.01016.87
7.3.160.0030.01316.92
7.3.10.0100.00616.94
7.3.00.0060.00616.62
7.2.330.0070.01016.83
7.2.320.0050.01417.07
7.2.310.0170.00017.02
7.2.300.0030.01316.98
7.2.290.0090.01316.92
7.2.130.0070.01116.74
7.2.120.0160.00816.88
7.2.110.0050.01116.97
7.2.100.0110.00516.94
7.2.90.0170.00916.77
7.2.80.0180.00317.14
7.2.70.0030.01617.16
7.2.60.0100.01116.96
7.2.50.0050.01317.05
7.2.40.0240.00316.84
7.2.30.0120.00617.18
7.2.20.0090.01317.13
7.2.10.0110.00716.69
7.2.00.0070.01318.35
7.1.250.0040.01215.58
7.1.100.0070.00718.16
7.1.70.0100.00717.29
7.1.60.0100.01419.13
7.1.50.0070.01716.95
7.1.00.0000.08022.52
7.0.200.0250.00815.16
7.0.60.0130.07720.05
7.0.50.0100.07717.94
7.0.40.0030.09020.41
7.0.30.0300.07020.19
7.0.20.0300.05320.32
7.0.10.0130.08020.18
7.0.00.0100.05720.10
5.6.280.0000.06321.12
5.6.210.0100.05320.60
5.6.200.0200.07318.23
5.6.190.0100.08320.56
5.6.180.0300.07020.27
5.6.170.0370.07320.41
5.6.160.0070.05720.43
5.6.150.0100.04018.16
5.6.140.0130.07318.08
5.6.130.0070.09018.09
5.6.120.0070.07320.95
5.6.110.0030.09021.02
5.6.100.0100.08721.00
5.6.90.0100.08021.09
5.6.80.0070.06020.38
5.5.350.0130.07720.46
5.5.340.0070.08317.96
5.5.330.0230.06720.21
5.5.320.1170.05020.30
5.5.310.0200.08320.29
5.5.300.0030.04317.98
5.5.290.0100.07717.91
5.5.280.0130.07320.76
5.5.270.0030.04720.73
5.5.260.0100.08320.72
5.5.250.0070.06020.61
5.5.240.0100.07020.18
5.4.450.0800.06019.41
5.4.440.0930.05319.42
5.4.430.0800.06019.45
5.4.420.0700.06019.23
5.4.410.0730.05319.31
5.4.400.0570.05719.22
5.4.390.0530.06019.12
5.4.380.0770.05019.12
5.4.370.0770.05018.91
5.4.360.0800.06018.78
5.4.350.0530.06019.21
5.4.340.0770.05318.91
5.4.320.0770.05319.13
5.4.310.0730.05319.16
5.4.300.0800.04319.16
5.4.290.0670.05719.21
5.4.280.0700.05718.80
5.4.270.0730.05318.80
5.4.260.0700.05318.94
5.4.250.0600.05719.19
5.4.240.0570.05319.19
5.4.230.0530.05719.13
5.4.220.0530.06019.20
5.4.210.0700.04718.80
5.4.200.0630.05319.25
5.4.190.0700.04318.92
5.4.180.0570.05719.12
5.4.170.0670.04719.15
5.4.160.0530.06019.10
5.4.150.0670.05719.09
5.4.140.0570.05716.18
5.4.130.0700.04016.32
5.4.120.0670.05716.52
5.4.110.0700.06016.45
5.4.100.0700.05016.27
5.4.90.0700.05016.40
5.4.80.0700.05016.38
5.4.70.0230.04716.41
5.4.60.0070.04316.37
5.4.50.0070.06016.17
5.4.40.0170.04016.43
5.4.30.0030.08016.36
5.4.20.0230.06316.03
5.4.10.0300.04716.38

preferences:
37.04 ms | 401 KiB | 5 Q