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| <td><h1>Code Igniter User Guide Version 1.4.0</h1></td> | |
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| <h1>String Helper</h1> | |
| <p>The String Helper file contains functions that assist in working with strings.</p> | |
| <h2>Loading this Helper</h2> | |
| <p>This helper is loaded using the following code:</p> | |
| <code>$this->load->helper('string');</code> | |
| <p>The following functions are available:</p> | |
| <h2>random_string()</h2> | |
| <p>Generates a random string based on the type and length you specify. Useful for creating passwords or generating random hashes.</p> | |
| <p>The first parameter specifies the type of string, the second parameter specifies the length. The following choices are available:</p> | |
| <ul> | |
| <li><strong>alnum</strong>: Alpha-numeric string with lower and uppercase characters.</li> | |
| <li><strong>numeric</strong>: Numeric string.</li> | |
| <li><strong>nozero</strong>: Numeric string with no zeros.</li> | |
| <li><strong>unique</strong>: Encrypted with MD5 and uniquid(). Note: The length parameter is not available for this type. | |
| Returns a fixed length 33 character string.</li> | |
| </ul> | |
| <p>Usage example:</p> | |
| <code>echo random_string('alnum', 16);</code> | |
| <h2>alternator()</h2> | |
| <p>Allows two or more items to be alternated between, when cycling through a loop. Example: | |
| <code>for ($i = 0; $i < 10; $i++)<br /> | |
| {<br /> | |
| echo alternator('string one', 'string two');<br /> | |
| }<br /> | |
| </code> | |
| <p>You can add as many parameters as you want, and with each each iteration of your loop the next item will be returned.</p> | |
| <code>for ($i = 0; $i < 10; $i++)<br /> | |
| {<br /> | |
| echo alternator('one', 'two', 'three', 'four', 'five');<br /> | |
| }<br /> | |
| </code> | |
| <p><strong>Note:</strong> To use multiple separate calls to this function simply call the function with no arguments to re-initialize.</p> | |
| <h2>repeater()</h2> | |
| <p>Generates repeating copies of the data you submit. Example:</p> | |
| <code>$string = "\n";<br /> | |
| echo repeater($string, 30);</code> | |
| <p>The above would generate 30 newlines.</p> | |
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