PHP function shuffle() implements reordering_PHP tutorial

in

shuffle -- shuffle the array:
bool shuffle ( array &array )

PHP function shuffle() shuffle ( Randomly arrange the order of cells) an array.

Note: The PHP function shuffle() assigns new key names to the cells in the array. This will delete the original keys rather than just reorder them.

Example:

<ol class="dp-xml">
<li class="alt"><span><span class="tag"><</span><span> ?php  </span></span></li><li><span>$</span><span class="attribute">a</span><span> = </span><span class="attribute-value">array</span><span>(  </span></li><li class="alt"><span>'1' =</span><span class="tag">></span><span> 'Xiao',  </span></span></li>
<li>
<span>'2' =</span><span class="tag">></span><span> 'Da',  </span>
</li>
<li class="alt">
<span>'3' =</span><span class="tag">></span><span> 'Zuo',  </span>
</li>
<li>
<span>'4' =</span><span class="tag">></span><span> 'You'  </span>
</li>
<li class="alt"><span>);  </span></li>
<li>
<span>echo "原来的数组："."</span><span class="tag"><</span><span> </span><span class="tag-name">br</span><span> </span><span class="tag">/></span><span>";  </span>
</li>
<li class="alt"><span>print_r($a);  </span></li>
<li><span>shuffle($a);  </span></li>
<li class="alt">
<span>echo "</span><span class="tag"><</span><span> </span><span class="tag-name">br</span><span> </span><span class="tag">/></span><span>"."现在的数组："."</span><span class="tag"><</span><span> </span><span class="tag-name">br</span><span> </span><span class="tag">/></span><span>";  </span>
</li>
<li><span>print_r($a);  </span></li>
<li class="alt">
<span class="tag">?></span><span> </span>
</li>
</ol>

Look at the results of the PHP function shuffle():

Original array:

Array ( [1] => Xiao [2] => Da [3] => Zuo [4] => You )

Current array:

Array ( [0] => Da [1] => Xiao [2] => You [3] => Zuo )

Of course, every time the page is refreshed, "Now The order of elements in the array will change once. Notice that the key names of the array have changed.

http://www.bkjia.com/PHPjc/446075.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/446075.htmlTechArticleIn shuffle -- shuffle the array: bool shuffle ( array array ) PHP function shuffle() shuffle (randomly The order in which cells are arranged) an array. Note: The PHP function shuffle() is the unit in array...