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This time I will show you how to implementstring flipping in PHP. What are theprecautions for PHP to implement string flipping?. The following is a practical case, let's take a look.
The example in this article describes how to implement the string flip function in PHP. Share it with everyone for your reference, the details are as follows: When it comes to the method of achieving string reversal, everyone will think of usingloop. Indeed, looping is a small memory footprint and simple to implement. But there is another way to achieve such a function, and that isrecursion.
PHP supportsrecursive functions. A recursive function is the function calling itself. These functions are particularly useful for dynamically browsing data structures such as joined lists and trees.
Example:0){ reverse_r(substr($str,1)); } echo substr($str,0,1); return; } //循环实现字符串翻转 function reverse_i($str){ for($i=1; $i<=strlen($str);$i++){ echo substr($str,-$i,1); } return; } reverse_r("Hello"); reverse_i("everyone"); ?>I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website! Recommended reading:
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