发现一个in_array很奇怪的有关问题
发现一个in_array很奇怪的问题
以下这个明明不在数组里面，但是in_array判断为true，是怎么回事呢？
- PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->$arr = array('0E372033','0E372034','0E372035','0E372036','0E372037','0E372038','0E372039');if(in_array('0E372031',$arr)){ echo "true";}else{ echo "false";}我知道in_array('',$arr,true) 这个能判断为false，我就是想知道没加第三个参数时为什么为true
------解决方案--------------------
php 把它当做科学计数法的数了
当 in_array('0E3',$arr) 时，一样是 true
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