PHP还是比较常用的，于是我研究了一下PHP二维数组，在这里拿出来和大家分享一下，希望对大家有用使用PHP从数组中取出一段值可使用PHP内置函数array_slice()，但这个函数只支持一维数组，具体使用可查看PHP手册，array_slice函数并不支持二维数组，。首先了解一下array_slice函数：
<ol class="dp-xml"><li class="alt"><span><span>array array_slice ( array array, int offset [, int length [, bool preserve_keys]] ) array_slice() </span></span></li></ol>
返回根据 offset 和 length 参数所指定的 array 数组中的一段序列。
实例：从一维数组中取出一段值
<ol class="dp-xml"><li class="alt"><span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">php</span></font></strong><span> $</span><span class="attribute"><font color="#ff0000">array</font></span><span class="attribute-value"><font color="#0000ff">array</font></span><span> = array('b','i','u','u','u'); $</span><span class="attribute"><font color="#ff0000">result</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">array_slice</font></span><span>($array,0,4); print_r($result); </span><span class="tag"><strong><font color="#006699">?></font></strong></span><span> </span></span></li></ol>实例从数组$array中取出四个值，起点数组下标0开始，结果如下：从一维数组取出一段值非常简单，直接使有内置函数array_slice 。PHP二维数组的取值同样需要使用array_slice 函数，实例二维数组数据如下：
<ol class="dp-xml">
<li class="alt"><span><span>$</span><span class="attribute"><font color="#ff0000">array</font></span><span class="attribute-value"><font color="#0000ff">array</font></span><span> = array (); </span></span></li>
<li class="">
<span>$array [1] = array ('1' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'b1', '2' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'i1', '3' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u1', '4' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u1', '5' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u1' );<br>$array [2] = array ('1' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'b2', '2' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'i2', '3' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u2', '4' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u2', '5' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u2' ); <br>$array [3] = array ('1' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'b3', '2' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'i3', '3' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u3', '4' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u3', '5' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u3' );<br>$array [4] = array ('1' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'b4', '2' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'i4', '3' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u4', '4' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u4', '5' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u4' ); <br>$array [5] = array ('1' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'b5', '2' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'i5', '3' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u5', '4' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u5', '5' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u5' ); <br>$array [6] = array ('1' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'b6', '2' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'i6', '3' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u6', '4' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u6', '5' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u6' ); <br>$array [7] = array ('1' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'b7', '2' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'i7', '3' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u7', '4' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u7', '5' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 'u7' ); </span>
</li>
</ol>如上二维数组，如果需要取出其中某段，需要知道取段开始与结束在数组中的位置，考虑到应用的特殊性，只从第一个数组开始，在这个二维数组中取出需要的数组个数。方法如下：
<ol class="dp-xml">
<li class="alt"><span><span>function array_silice_func(array $array, $limit) </span></span></li>
<li class="">
<span>{ $</span><span class="attribute"><font color="#ff0000">k</font></span><span> = $</span><span class="attribute"><font color="#ff0000">count</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">0</font></span><span>; $</span><span class="attribute"><font color="#ff0000">temp</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">array</font></span><span> (); </span>
</li>
<li class="alt">
<span> foreach ( $array as $</span><span class="attribute"><font color="#ff0000">key</font></span><span> =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> $value ) </span>
</li>
<li class="">
<span>{ $</span><span class="attribute"><font color="#ff0000">count</font></span><span class="attribute-value"><font color="#0000ff">count</font></span><span> = count ( $value ); </span>
</li>
<li class="alt">
<span>if ($count + $k </span><span class="tag"><strong><font color="#006699">></font></strong></span><span>= $limit) </span>
</li>
<li class="">
<span>{ $</span><span class="attribute"><font color="#ff0000">t</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">array_slice</font></span><span> ( $value, 0, $limit - $k ); </span>
</li>
<li class="alt"><span>$temp [$key] = $t; break; } </span></li>
<li class=""><span>$temp [$key] = $value; $k += $count; } return $temp; } </span></li>
</ol>
Apakah definisi tatasusunan?
js rentetan kepada tatasusunan
Bagaimana untuk membuka fail php
Kaedah permulaan tatasusunan
c kaedah permulaan tatasusunan
Bagaimana untuk mencari nilai maksimum dan minimum elemen tatasusunan dalam Java
Bagaimana untuk mengalih keluar beberapa elemen pertama tatasusunan dalam php
Apa yang perlu dilakukan jika penyahserialisasian php gagal
![[Web front-end] Permulaan pantas Node.js](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
