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php中的strpos没返回值

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2016-06-13 10:33:481177browse

php中的strpos没有返回值
echo strpos("jjjj333","jf");没有返回false啊是怎么回事？

------解决方案--------------------
var_dump( strpos("jjjj333","jf")); //这样才行
------解决方案--------------------

PHP code
if(strpos('jjjj333','jf') === false){    echo "failed";}else{    echo "success";}<div class="clear">
                 
              
              
        
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