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| <h1>Array Helper</h1> | |
| <p>The Array Helper file contains functions that assist in working with arrays.</p> | |
| <h2>Loading this Helper</h2> | |
| <p>This helper is loaded using the following code:</p> | |
| <code>$this->load->helper('array');</code> | |
| <p>The following functions are available:</p> | |
| <h2>element()</h2> | |
| <p>Lets you fetch an item from an array. The function tests whether the array index is set and whether it has a value. If | |
| a value exists it is returned. If a value does not exist it returns FALSE, or whatever you've specified as the default value via the third parameter. Example:</p> | |
| <code> | |
| $array = array('color' => 'red', 'shape' => 'round', 'size' => '');<br /> | |
| <br /> | |
| // returns "red"<br /> | |
| echo element('color', $array);<br /> | |
| <br /> | |
| // returns NULL<br /> | |
| echo element('size', $array, NULL); | |
| </code> | |
| <h2>random_element()</h2> | |
| <p>Takes an array as input and returns a random element from it. Usage example:</p> | |
| <code>$quotes = array(<br /> | |
| "I find that the harder I work, the more luck I seem to have. - Thomas Jefferson",<br /> | |
| "Don't stay in bed, unless you can make money in bed. - George Burns",<br /> | |
| "We didn't lose the game; we just ran out of time. - Vince Lombardi",<br /> | |
| "If everything seems under control, you're not going fast enough. - Mario Andretti",<br /> | |
| "Reality is merely an illusion, albeit a very persistent one. - Albert Einstein",<br /> | |
| "Chance favors the prepared mind - Louis Pasteur"<br /> | |
| );<br /> | |
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| echo random_element($quotes);</code> | |
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