3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "Ебал твою тупость"; //способ 1 $length = mb_strlen($str); for ($i=1; $i <= $length; $i++) { //echo $i . "\n"; $symbol = mb_substr($str, -$i, 1); echo $symbol; echo "\n"; }

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)
8.3.60.0150.00616.50
8.3.50.0060.00916.24
8.3.40.0040.01518.55
8.3.30.0090.00618.71
8.3.20.0050.00221.81
8.3.10.0040.00423.66
8.3.00.0000.00819.66
8.2.180.0180.00316.38
8.2.170.0040.01122.96
8.2.160.0070.00720.52
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00720.36
8.2.120.0040.00426.35
8.2.110.0100.00022.25
8.2.100.0060.00619.58
8.2.90.0030.00518.03
8.2.80.0030.00717.97
8.2.70.0050.00318.04
8.2.60.0060.00317.80
8.2.50.0030.00618.10
8.2.40.0000.00720.46
8.2.30.0000.00821.10
8.2.20.0040.00418.17
8.2.10.0080.00017.99
8.2.00.0060.00317.99
8.1.280.0100.00725.92
8.1.270.0040.00418.87
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0040.00423.97
8.1.230.0040.00819.01
8.1.220.0000.00817.93
8.1.210.0000.00818.77
8.1.200.0030.00616.98
8.1.190.0030.00517.35
8.1.180.0070.00018.10
8.1.170.0050.00318.65
8.1.160.0070.00018.93
8.1.150.0000.00718.74
8.1.140.0030.00619.43
8.1.130.0070.00020.66
8.1.120.0030.00317.41
8.1.110.0070.00017.41
8.1.100.0040.00417.41
8.1.90.0060.00317.29
8.1.80.0000.00717.41
8.1.70.0030.00317.41
8.1.60.0060.00317.47
8.1.50.0100.00017.47
8.1.40.0050.00317.57
8.1.30.0040.00417.72
8.1.20.0080.00017.51
8.1.10.0050.00317.47
8.1.00.0040.00417.54
8.0.300.0030.00519.61
8.0.290.0060.00316.75
8.0.280.0030.00418.55
8.0.270.0030.00517.22
8.0.260.0050.00219.00
8.0.250.0030.00317.04
8.0.240.0000.00817.03
8.0.230.0040.00417.04
8.0.220.0030.00316.83
8.0.210.0070.00016.80
8.0.200.0040.00416.95
8.0.190.0000.00816.91
8.0.180.0040.00416.96
8.0.170.0000.00716.81
8.0.160.0000.00816.89
8.0.150.0050.00316.75
8.0.140.0070.00316.90
8.0.130.0070.00013.20
8.0.120.0040.00416.76
8.0.110.0000.00717.00
8.0.100.0050.00216.82
8.0.90.0000.00716.69
8.0.80.0150.00416.94
8.0.70.0000.00816.94
8.0.60.0070.00016.77
8.0.50.0080.00016.73
8.0.30.0050.01416.98
8.0.20.0100.01017.40
8.0.10.0040.00416.83
8.0.00.0070.01016.78
7.4.330.0020.00215.55
7.4.320.0060.00016.56
7.4.300.0060.00016.54
7.4.290.0030.00416.50
7.4.280.0000.00716.50
7.4.270.0030.00316.43
7.4.260.0030.00316.51
7.4.250.0000.00816.35
7.4.240.0080.00016.44
7.4.230.0030.00316.54
7.4.220.0070.01316.47
7.4.210.0090.00916.61
7.4.200.0040.00416.51
7.4.160.0120.00616.51
7.4.150.0130.00317.40
7.4.140.0140.00817.86
7.4.130.0120.01216.52
7.4.120.0080.01316.51
7.4.110.0120.01216.40
7.4.100.0110.00916.57
7.4.90.0090.00916.55
7.4.80.0100.00619.39
7.4.70.0060.01116.56
7.4.60.0030.01416.39
7.4.50.0070.00716.25
7.4.40.0070.01116.46
7.4.30.0060.01216.49
7.4.10.0160.00314.90
7.4.00.0070.01014.82
7.3.330.0070.00013.16
7.3.320.0030.00313.17
7.3.310.0030.00516.11
7.3.300.0000.00816.20
7.3.290.0040.01116.25
7.3.280.0090.00816.23
7.3.270.0110.00717.40
7.3.260.0080.01416.34
7.3.250.0090.00916.50
7.3.240.0080.00916.35
7.3.230.0130.01016.56
7.3.210.0030.01316.33
7.3.200.0100.01016.61
7.3.190.0070.01016.57
7.3.180.0060.01016.65
7.3.170.0130.00316.58
7.3.160.0030.01316.27
7.3.130.0060.00614.88
7.3.120.0130.00314.99
7.3.110.0160.00315.06
7.3.100.0080.00514.65
7.3.90.0040.00814.89
7.3.80.0000.01214.94
7.3.70.0060.00914.60
7.3.60.0030.01014.63
7.3.50.0000.01015.02
7.3.40.0100.00714.56
7.3.30.0030.01214.58
7.3.20.0060.00616.86
7.3.10.0090.00316.73
7.3.00.0070.01016.52
7.2.330.0090.01016.44
7.2.320.0090.01016.67
7.2.310.0060.01016.73
7.2.300.0100.00716.67
7.2.290.0080.00816.79
7.2.260.0060.01215.14
7.2.250.0070.01015.20
7.2.240.0040.00815.21
7.2.230.0030.01315.09
7.2.220.0120.00615.19
7.2.210.0000.01415.19
7.2.200.0090.00614.92
7.2.190.0110.00415.19
7.2.180.0060.00614.99
7.2.170.0000.01614.91
7.2.160.0060.01515.08
7.2.150.0090.00617.23
7.2.140.0030.01016.97
7.2.130.0100.00616.64
7.2.120.0060.01216.74
7.2.110.0040.01116.84
7.2.100.0040.00817.00
7.2.90.0130.00716.73
7.2.80.0070.01116.66
7.2.70.0110.00416.97
7.2.60.0030.01117.11
7.2.50.0100.00716.95
7.2.40.0070.01016.93
7.2.30.0060.00616.89
7.2.20.0180.00016.93
7.2.10.0080.00817.06
7.2.00.0100.00316.68
7.1.330.0060.00615.98
7.1.320.0030.00715.94
7.1.310.0030.01415.78
7.1.300.0100.00315.59
7.1.290.0060.00315.67
7.1.280.0000.01015.90
7.1.270.0130.00715.91
7.1.260.0050.00315.60
7.1.250.0030.01716.02
7.1.240.0000.01615.96
7.1.230.0000.01315.79
7.1.220.0070.00716.02
7.1.210.0030.01215.80
7.1.200.0070.00815.72
7.1.190.0040.00815.84
7.1.180.0000.01415.94
7.1.170.0060.00915.94
7.1.160.0060.01215.96
7.1.150.0030.00715.74
7.1.140.0090.00915.96
7.1.130.0000.01115.75
7.1.120.0150.00015.58
7.1.110.0040.00415.79
7.1.100.0110.00415.82
7.1.90.0090.00915.78
7.1.80.0000.00915.85
7.1.70.0020.01116.49
7.1.60.0300.00724.70
7.1.50.0270.01424.37
7.1.40.0360.01324.25
7.1.30.0330.01224.29
7.1.20.0380.01724.17
7.1.10.0270.00815.53
7.1.00.0510.01115.43
7.0.330.0060.00915.21
7.0.320.0120.00615.35
7.0.310.0070.00715.47
7.0.300.0090.00915.32
7.0.290.0070.00715.43
7.0.280.0060.01015.35
7.0.270.0000.01215.46
7.0.260.0050.00315.46
7.0.250.0060.00615.58
7.0.240.0150.00315.39
7.0.230.0060.00315.29
7.0.220.0030.01215.33
7.0.210.0070.00715.58
7.0.200.0250.00815.12
7.0.190.0250.01015.15
7.0.180.0270.01314.96
7.0.170.0240.00714.81
7.0.160.0310.00615.04
7.0.150.0230.01015.08
7.0.140.0260.00914.82
7.0.130.0350.01315.03
7.0.120.0390.00815.25
7.0.110.0380.00515.09
7.0.100.0340.01215.02
7.0.90.0180.01514.97
7.0.80.0320.00815.02
7.0.70.0320.00814.92
7.0.60.0220.01214.89
7.0.50.0350.01015.10
7.0.40.0300.01114.15
7.0.30.0350.00514.08
7.0.20.0330.00513.94
7.0.10.0300.01514.12
7.0.00.0340.00813.95
5.6.400.0030.00614.40
5.6.390.0110.00614.47
5.6.380.0110.00414.11
5.6.370.0000.01514.16
5.6.360.0100.01014.23
5.6.350.0060.00614.14
5.6.340.0000.01214.34
5.6.330.0030.00614.30
5.6.320.0080.00614.17
5.6.310.0130.00314.16
5.6.300.0090.00914.38
5.6.290.0030.01614.31
5.6.280.0100.00314.19
5.6.270.0000.01714.29
5.6.260.0000.01814.20
5.6.250.0030.01414.63
5.6.240.0060.00314.53
5.6.230.0090.00614.25
5.6.220.0060.01014.49
5.6.210.0060.00614.64
5.6.200.0030.01414.66
5.6.190.0090.00614.09
5.6.180.0070.00414.39
5.6.170.0100.00314.41
5.6.160.0090.00614.36
5.6.150.0120.00314.33
5.6.140.0070.00714.24
5.6.130.0040.00414.18
5.6.120.0030.01314.36
5.6.110.0070.00714.45
5.6.100.0070.00714.55
5.6.90.0030.01014.51
5.6.80.0030.00914.39
5.6.70.0000.00814.16
5.6.60.0130.00014.03
5.6.50.0040.01114.57
5.6.40.0060.00814.25
5.6.30.0060.00314.07
5.6.20.0110.00414.44
5.6.10.0110.00014.17
5.6.00.0060.00314.31

preferences:
58.4 ms | 400 KiB | 5 Q