PHP str_replace () function example tutorial

PHP str_replace () function example tutorial

Definition and usage
This str_replace () function replaces some characters with other character strings.

This function works in the following rules:

If the string is searched as an array, it returns an array
If the string is searched for as an array, the search and replacement use each array element.
If you find and replace the array, and replace a small part of it than finding an empty string, it will be used as a replacement
If an array is found and replaced by a string, replacement of the string will be used for every search for value.
Syntax

str_replace(find,replace,string,count)

 

  

   

    
Parameter
    
Description
   
   

    
Find
    
Required. Specified value discovery
   
   

    
Replace
    
Required. Specified value to replace value discovery
   
   

    
String
    
Required. The specified string is searched
   
   

    
Count
    
Optional. Replace the count of a Variable
   
  
 

Tips and instructions
Note: This function is case sensitive. Use str_ireplace () to perform a case-insensitive search.

Note: This function is binary secure.


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Example 1
<?phpecho str_replace("world","Peter","Hello world!");?>
 
Output result.
 
Hello Peter!
 
Example 2
In this example, we will show the same array of str_replace () and a counting variable:
 

   

    

     

      
<?php$arr = array("blue","red","green","yellow");print_r(str_replace("red","pink",$arr,$i));echo "Replacements: $i";?>
     
    
   
Output result
 
Array([0] => blue[1] => pink[2] => green[3] => yellow)Replacements: 1