1.一维数组遍历
<code><span>foreach</span>(<span>$array</span><span>as</span><span>$value</span>){ <span>echo</span><span>$value</span>;}</code>
2.二维数组遍历
<code><span>foreach</span>(<span>$array</span><span>$key</span>=><span>$val</span>){ <span>echo</span><span>$key</span>.<span>'=>'</span>.<span>$val</span>;}</code>
3.多维数组遍历
<code><span>public</span><span>static</span><span><span>function</span><span>multi_arr_foreach</span><span>(<span>$arr</span>)</span> {</span><span>static</span><span>$data</span>; <span>if</span> (!is_array (<span>$arr</span>)) { <span>return</span><span>$data</span>; } <span>foreach</span> (<span>$arr</span><span>as</span><span>$key</span> => <span>$val</span> ) { <span>if</span> (is_array (<span>$val</span>)) { <span>self</span>::multi_arr_foreach(<span>$val</span>); } <span>else</span> { <span>$data</span>[]=<span>$val</span>; } } <span>return</span><span>$data</span>;}</code>
不过还看到一个很简短的写法，还不是很理解
<code><span><span>function</span><span>loop_array</span><span>(<span>$arr</span>)</span>{</span><span>$value</span> = is_array(<span>$arr</span>) ? array_map(<span>'loop_array'</span>,<span>$arr</span>) : <span>$arr</span>;<span>return</span><span>$value</span>;}</code>
在遍历三维数组时，如果要修改value值时，要注意还要把改变的value值再赋给key
<code><span><span>function</span><span>threeArray</span><span>(<span>$arr</span>)</span>{</span><span>foreach</span> (<span>$arr</span><span>as</span><span>$key</span> => <span>$value</span><span style="color:transparent">/本文来源gaodai#ma#com搞*!代#%^码网%</span><sub>搞代gaodaima码</sub>) { <span>$value</span>[<span>'4'</span>] = <span>'very'</span><span>$arr</span>[<span>$key</span>] = <span>$value</span>; } <span>return</span><span>$arr</span>; }</code>
‘).addClass(‘pre-numbering’).hide(); $(this).addClass(‘has-numbering’).parent().append($numbering); for (i = 1; i <= lines; i++) { $numbering.append($('
‘).text(i)); }; $numbering.fadeIn(1700); }); }); </script>以上就介绍了php数组遍历，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。
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