What are the methods of replacing the Str_replace () function with the PHP string? (Four types)

What this article brings to you is about the method of replacing the Str_replace () function with the PHP string. (four kinds), there is a certain reference value, the need for friends can refer to, I hope to help you.

The following article to share the PHP string replacement str_replace () function 4 uses, the specific content is as follows:

Mixed Str_replace (mixed $search, mixed $replace, mixed $subject [, int & $count])

The function returns a string or an array. The string or array is the result of replacing all search in subject with replace.

1, $search, the string to replace, or the array

2. $replace, the string or array to replace

3. $subject, the string or array being queried

4, $count, optional, if specified, will be set to replace the number of times

5. Return value: The function returns the replaced array or string (reborn)

<?php//instance One: String substitution string $str 1 = str_replace ("Red", "Black", "Red green Yellow  Pink Purple ");  echo $str 1. "";  The output is black green yellow pink purple?><?php//instance two: String substitution array key value $arr = Array ("Blue", "Red", "green", "yellow");  $str 1 = str_replace ("Red", "pink", $arr, $i); Print_r ($str 1);?  ><?php//Instance three: Array substitution array, map substitution $arr 1 = array ("Banana", "orange");  $arr 2 = Array ("Pitaya", "tomato");  $con _arr = Array ("Apple", "orange", "banana", "grape");  $con _rep = Str_replace ($arr 1, $arr 2, $con _arr, $count); Print_r ($con _rep);?  ><?php//Instance four: $search = Array ("Banana", "grape") if the array is $replace as a string $search;  $replace = "tomato";  $arr = Array ("Banana", "apple", "orange", "Grape");  $new _arr = Str_replace ($search, $replace, $arr, $count); Print_r ($new _arr);?