String substitution substr_ Replace and str_ replace

From , 3 Years ago, written in PHP, viewed 52 times.

<?php 
echo substr_replace('abcdef', '###', 1);    //输出 a### 
echo substr_replace('abcdef', '###', 1, 2); //输出 a###def 
echo substr_replace('abcdef', '###', -3, 2);    //输出 abc###f 
echo substr_replace('abcdef', '###', 1, -2);    //输出 a###ef  
?>

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String substitution substr_ Replace and str_ replace

Reply to "String substitution substr_ Replace and str_ replace"