https://github.com/carlosv2/reversestring

PHP Speed tests for reversing strings functions
https://github.com/carlosv2/reversestring

Last synced: 2 months ago
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PHP Speed tests for reversing strings functions

• Host: GitHub
• URL: https://github.com/carlosv2/reversestring
• Owner: carlosV2
• Created: 2014-01-13T16:30:50.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2014-01-13T23:57:51.000Z (about 11 years ago)
• Last Synced: 2023-08-09T10:24:39.553Z (over 1 year ago)
• Language: PHP
• Size: 102 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: Readme.md

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README

        
# Reverse String

This project helps to test the feasibility of some reversing-string functions.

Please, note that as a requirement, the functions must not use any string or array reversal nor sort functions built into PHP (such as strrev, array_reverse, etc.). Also may not use any of the standard looping constructs (for, while, foreach...).

## Running the project

To run the project just browse to the folder within the command line and execute:

	$ php index.php

## Results

You will see how the algorithms are tested and the time taken per algorithm. An example result is shown:

	Generate data:

	1000000 strings generated.

	rs_divide_on_middle:

	40.4279 seconds

	rs_stop_in_middle:

	11.8895 seconds

	rs_stop_in_middle_with_pointer:

	12.5251 seconds

	rs_stop_on_len_1:

	23.8343 seconds

	rs_stop_on_len_10_by_if:

	12.6121 seconds

	rs_stop_on_len_10_by_switch:

	13.5073 seconds

	rs_with_arrays:

	39.7664 seconds

	strrev:

	1.887 seconds