3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_internal_encoding("UTF-8"); $str = "Ahoj já jsem poslední. "; $ln = mb_strlen($str, 'UTF-8'); $ref = 0; $offset = mb_strrpos($str, ' ', $ref, 'UTF-8'); echo "<br>nalezeno na pozici $offset, \$ref = $ref"; $ref = ($ln - $offset + 1) * -1; $offset = mb_strrpos($str, ' ', $ref, 'UTF-8'); echo "<br>nalezeno na pozici $offset, \$ref = $ref"; $ref = ($ln - $offset + 1) * -1; $offset = mb_strrpos($str, ' ', $ref, 'UTF-8'); echo "<br>nalezeno na pozici $offset, \$ref = $ref"; $ref = ($ln - $offset + 1) * -1; $offset = mb_strrpos($str, ' ', $ref, 'UTF-8'); echo "<br>nalezeno na pozici $offset, \$ref = $ref"; $ref = ($ln - $offset + 1) * -1;

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)
8.3.60.0110.00616.63
8.3.50.0100.01017.38
8.3.40.0100.01018.70
8.3.30.0060.01318.73
8.3.20.0040.00418.64
8.3.10.0030.00620.57
8.3.00.0040.00417.50
8.2.180.0140.00316.63
8.2.170.0090.00622.96
8.2.160.0070.00722.16
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0100.00019.95
8.2.110.0090.00021.11
8.2.100.0080.00417.97
8.2.90.0000.00719.17
8.2.80.0030.00617.97
8.2.70.0030.00617.38
8.2.60.0030.00517.91
8.2.50.0060.00318.07
8.2.40.0000.00918.04
8.2.30.0000.00717.96
8.2.20.0040.00417.75
8.2.10.0050.00217.71
8.2.00.0040.00417.75
8.1.280.0070.01125.92
8.1.270.0050.00323.99
8.1.260.0160.00326.35
8.1.250.0000.00828.09
8.1.240.0040.00720.82
8.1.230.0040.00820.92
8.1.220.0030.00518.77
8.1.210.0030.00718.97
8.1.200.0100.00017.35
8.1.190.0000.00717.53
8.1.180.0000.01118.10
8.1.170.0040.00418.82
8.1.160.0040.00418.75
8.1.150.0000.00818.59
8.1.140.0040.00417.32
8.1.130.0000.00717.79
8.1.120.0040.00417.41
8.1.110.0040.00417.45
8.1.100.0050.00317.42
8.1.90.0070.00017.38
8.1.80.0030.00317.32
8.1.70.0030.00317.33
8.1.60.0000.00717.58
8.1.50.0050.00217.45
8.1.40.0040.00417.46
8.1.30.0000.00717.55
8.1.20.0000.00917.55
8.1.10.0070.00017.67
8.1.00.0050.00317.45
8.0.300.0000.00720.10
8.0.290.0040.00416.88
8.0.280.0030.00318.53
8.0.270.0070.00017.33
8.0.260.0000.00716.77
8.0.250.0040.00417.04
8.0.240.0040.00317.00
8.0.230.0030.00317.03
8.0.220.0040.00416.88
8.0.210.0040.00316.88
8.0.200.0020.00516.96
8.0.190.0030.00516.94
8.0.180.0040.00416.91
8.0.170.0080.00016.96
8.0.160.0040.00417.09
8.0.150.0000.00816.96
8.0.140.0030.00516.84
8.0.130.0030.00313.36
8.0.120.0030.00616.99
8.0.110.0040.00416.90
8.0.100.0000.00716.84
8.0.90.0040.00416.86
8.0.80.0090.00616.93
8.0.70.0030.00416.85
8.0.60.0040.00416.98
8.0.50.0000.00716.90
8.0.30.0110.00717.19
8.0.20.0030.01417.07
8.0.10.0050.00216.85
8.0.00.0060.01316.77
7.4.330.0000.00514.66
7.4.320.0030.00316.58
7.4.300.0030.00316.54
7.4.290.0000.00716.55
7.4.280.0030.00716.54
7.4.270.0000.00716.45
7.4.260.0000.00613.17
7.4.250.0000.00816.50
7.4.240.0030.00616.47
7.4.230.0070.00016.48
7.4.220.0190.00716.51
7.4.210.0080.00916.54
7.4.200.0080.00016.29
7.4.190.0030.00316.73
7.4.160.0100.00716.45
7.4.150.0060.01117.07
7.4.140.0060.01417.12
7.4.130.0050.01316.52
7.4.120.0140.00416.51
7.4.110.0070.01716.42
7.4.100.0100.00716.50
7.4.90.0170.00716.41
7.4.80.0070.01018.80
7.4.70.0080.01116.32
7.4.60.0100.00716.23
7.4.50.0030.00616.20
7.4.40.0070.00722.27
7.4.30.0060.01216.46
7.4.00.0040.01114.95
7.3.330.0080.00013.25
7.3.320.0060.00013.14
7.3.310.0050.00316.39
7.3.300.0000.00716.34
7.3.290.0030.01616.40
7.3.280.0050.01016.35
7.3.270.0090.00917.07
7.3.260.0130.00518.24
7.3.250.0130.00816.36
7.3.240.0100.01116.51
7.3.230.0130.00316.48
7.3.210.0060.00916.21
7.3.200.0130.01019.39
7.3.190.0030.01416.52
7.3.180.0100.00616.43
7.3.170.0040.01116.41
7.3.160.0150.00616.46
7.3.120.0080.00814.86
7.2.330.0130.01016.57
7.2.320.0110.00716.41
7.2.310.0050.01416.49
7.2.300.0060.01216.57
7.2.290.0130.00316.60
7.2.00.0000.01319.27
7.1.100.0000.01217.84
7.1.70.0050.00217.00
7.1.60.0070.01819.40
7.1.50.0030.02016.77
7.1.00.0030.06322.33
7.0.200.0030.00716.87
7.0.140.0000.07722.00
7.0.60.0070.08019.93
7.0.50.0030.05017.87
7.0.40.0030.04320.12
7.0.30.0200.04320.30
7.0.20.0400.07320.04
7.0.10.0070.04320.18
7.0.00.0030.08320.09
5.6.280.0070.07020.99
5.6.210.0000.05320.51
5.6.200.0170.07018.12
5.6.190.0000.04720.35
5.6.180.0300.03720.41
5.6.170.0300.04720.50
5.6.160.0070.09020.51
5.6.150.0000.04318.21
5.6.140.0070.04318.14
5.6.130.0100.05018.20
5.6.120.0030.04020.91
5.6.110.0030.09021.14
5.6.100.0070.08720.98
5.6.90.0100.07021.11
5.6.80.0070.07020.54
5.5.350.0070.08320.43
5.5.340.0170.03317.98
5.5.330.0130.03320.28
5.5.320.1600.07020.21
5.5.310.0200.06320.50
5.5.300.0100.07717.95
5.5.290.0030.06018.02
5.5.280.0130.07720.95
5.5.270.0100.07020.75
5.5.260.0030.08320.96
5.5.250.0070.04020.61
5.5.240.0030.07320.35
5.4.450.0500.04019.36
5.4.440.0530.03719.57
5.4.430.0870.03719.43
5.4.420.0800.03019.09
5.4.410.0630.04318.99
5.4.400.0870.03719.13
5.4.390.0530.04019.09
5.4.380.0330.04319.10
5.4.370.0670.03719.06
5.4.360.0470.04019.16
5.4.350.0930.04719.16
5.4.340.0600.04019.09
5.4.320.0430.05019.13
5.4.310.0530.04319.04
5.4.300.0800.04019.21
5.4.290.0430.04719.13
5.4.280.0600.04319.13
5.4.270.0800.03719.21
5.4.260.0570.05019.14
5.4.250.0570.03318.79
5.4.240.0800.03719.29
5.4.230.0770.03719.05
5.4.220.0870.03319.05
5.4.210.0700.03719.24
5.4.200.0670.04019.25
5.4.190.0400.03319.20
5.4.180.0270.04319.05
5.4.170.0470.04019.12
5.4.160.0700.04319.08
5.4.150.0530.04719.20
5.4.140.0400.04716.27
5.4.130.0470.03316.42
5.4.120.0700.03016.33
5.4.110.0630.02716.39
5.4.100.0670.04016.24
5.4.90.0570.04316.40
5.4.80.0500.03316.24
5.4.70.0530.03316.24
5.4.60.0870.03316.24
5.4.50.0370.04316.32
5.4.40.0430.03016.24
5.4.30.0730.03316.36
5.4.20.0700.03016.38
5.4.10.0630.04316.34
5.4.00.0530.04016.24
5.3.290.0500.05716.24
5.3.280.0500.04016.24
5.3.270.0670.02716.24
5.3.260.0970.03716.24
5.3.250.0730.03316.24
5.3.240.0530.04716.24
5.3.230.0530.04016.24
5.3.220.1070.03716.24
5.3.210.0700.04016.24
5.3.200.0500.03716.24
5.3.190.0570.03016.24
5.3.180.1070.02016.24
5.3.170.0300.04016.24
5.3.160.0830.03716.24
5.3.150.0600.04716.24
5.3.140.0570.03716.24
5.3.130.0230.03316.24
5.3.120.0600.03716.24
5.3.110.0800.04316.24
5.3.100.0330.03316.24
5.3.90.0430.04316.24
5.3.80.0400.02716.24
5.3.70.0470.04016.24
5.3.60.0870.03716.24
5.3.50.0330.04316.24
5.3.40.0570.03716.24
5.3.30.0570.03016.24
5.3.20.0800.03716.24
5.3.10.0470.05016.24
5.3.00.0430.04016.24
5.2.170.0570.02716.24
5.2.160.0600.03016.24
5.2.150.0230.02716.24
5.2.140.0400.03016.24
5.2.130.0300.03316.24
5.2.120.0400.03016.24
5.2.110.0470.02016.24
5.2.100.0470.03316.24
5.2.90.0400.02716.24
5.2.80.0430.03716.24
5.2.70.0630.02716.24
5.2.60.0400.03016.24
5.2.50.0330.03016.24
5.2.40.0270.02716.24
5.2.30.0230.02716.24
5.2.20.0270.02716.24
5.2.10.0400.02716.24
5.2.00.0430.02716.24
5.1.60.0430.02016.24
5.1.50.0270.02716.24
5.1.40.0400.02716.24
5.1.30.0470.02716.24
5.1.20.0400.02316.24
5.1.10.0400.03016.24
5.1.00.0430.02316.24
5.0.50.0070.01716.24
5.0.40.0100.02016.24
5.0.30.0130.02716.24
5.0.20.0070.02316.24
5.0.10.0300.01716.24
5.0.00.0100.03316.24
4.4.90.0200.01316.24
4.4.80.0070.02016.24
4.4.70.0030.02316.24
4.4.60.0130.01016.24
4.4.50.0200.02016.24
4.4.40.0130.02716.24
4.4.30.0130.01716.24
4.4.20.0130.01316.24
4.4.10.0200.01016.24
4.4.00.0030.03016.24
4.3.110.0200.01316.24
4.3.100.0300.01316.24
4.3.90.0230.01016.24
4.3.80.0330.01716.24
4.3.70.0030.01016.24
4.3.60.0170.01716.24
4.3.50.0130.01316.24
4.3.40.0270.02716.24
4.3.30.0030.01716.24
4.3.20.0100.02016.24
4.3.10.0100.01316.24
4.3.00.0070.01716.24

preferences:
43.09 ms | 400 KiB | 5 Q