How to swap substring positions in PHP Original, fontcolor_PHP tutorial

PHP’s method of swapping substring positions. Original, fontcolor

The example in this article describes how PHP can swap substring positions. Share it with everyone for your reference, the details are as follows:

<&#63;php
/*子字符串位置互换
 */
$str1="Tom";
$str2="Jack";
$str="This is an example,you see Tom tell Jack something";
function str_change($str,$str1,$str2){
  $len1=strlen($str1);
  $len2=strlen($str2);
  $pos1=strpos($str,$str1);
  $str=substr_replace($str,$str2,$pos1,$len1);//替换$str1为$str2
  $pos2= strpos($str,$str2,$len1+$pos1);//定位替换后字符串中原$str2字段的位置
  return substr_replace($str,$str1,$pos2,$len2);//替换$str2为$str1
}
echo str_change($str,$str1,$str2);
&#63;>

The running result is:

This is an example, you see Jack tell Tom something

Supplement: The editor here recommends a PHP formatting and beautifying typesetting tool on this website to help you code typesetting in future PHP programming:

php code online formatting and beautification tool:

http://tools.jb51.net/code/phpformat

In addition, since php belongs to the C language style, the following tool can also format php code:

C language style/HTML/CSS/json code formatting and beautification tool:
http://tools.jb51.net/code/ccode_html_css_json

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I hope this article will be helpful to everyone in PHP programming.

http://www.bkjia.com/PHPjc/1133029.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1133029.htmlTechArticlephp method to realize substring position swapping and exchange original, fontcolor This article tells the example of php realizing substring A method of swapping positions. Share it with everyone for your reference...