"Cat",2=>"Horse",3=>"Bird");for ($i = 0; $i "/> "Cat",2=>"Horse",3=>"Bird");for ($i = 0; $i ">
Home > Backend Development > PHP Tutorial > 小弟我想问一下以下这段代码为什么会输出这样的结果?不是应该全部为空吗

小弟我想问一下以下这段代码为什么会输出这样的结果?不是应该全部为空吗

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Release: 2016-06-13 11:32:48
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我想问一下以下这段代码为什么会输出这样的结果?不是应该全部为空吗?

<br />$a1=array(0=>"Dog",1=>"Cat",2=>"Horse",3=>"Bird");<br />for ($i = 0; $i < count($a1); $i++) {<br />	array_splice($a1,$i, 1);<br />}<br />print_r($a1);<br />
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效果:
Array ( [0] => Cat [1] => Bird )
PHP

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