PHP str_ireplace () function
Examples
The string "! Hello world" characters "WORLD" (case insensitive) replace "Peter":
<?php
echo str_ireplace("WORLD","Peter","Hello world!");
?>
echo str_ireplace("WORLD","Peter","Hello world!");
?>
Running instance »
Definition and Usage
str_ireplace () function replaces some characters in the string (not case-sensitive).
This function must follow these rules:
- If the search string is an array, it returns an array.
- If the search string is an array, then it will find and replace each element in the array.
- If you need to find and replace an array, and the need to perform replacement of the elements is less than the number of elements to look for, then the extra elements will be replaced with an empty string.
- If an array is to find, but only for a string to be replaced, then the replacement string values will all find work.
Note: This function is not case-sensitive.Please use the str_replace () function performs a case-sensitive search.
Note: This function is binary safe.
grammar
str_ireplace( find,replace,string,count )
| 参数 | 描述 |
|---|---|
| find | 必需。规定要查找的值。 |
| replace | 必需。规定替换find中的值的值。 |
| string | 必需。规定被搜索的字符串。 |
| count | 可选。一个变量，对替换数进行计数。 |
technical details
| return value: | Returns a string or an array with a replacement value. |
|---|---|
| PHP version: | 5+ |
| Update log: | In PHP 5.0, add the count parameter. |
More examples
Example 1
With the use of arrays and count variable str_ireplace () function:
<?php
$arr = array("blue","red","green","yellow");
print_r(str_ireplace("RED","pink",$arr,$i)); // This function is case-insensitive
echo "Replacements: $i";
?>
$arr = array("blue","red","green","yellow");
print_r(str_ireplace("RED","pink",$arr,$i)); // This function is case-insensitive
echo "Replacements: $i";
?>
Running instance »
Example 2
Using the element needs to be replaced with a less than look to the elements str_ireplace () function:
<?php
$find = array("HELLO","WORLD"); // This function is case-insensitive
$replace = array("B");
$arr = array("Hello","world","!");
print_r(str_ireplace($find,$replace,$arr));
?>
$find = array("HELLO","WORLD"); // This function is case-insensitive
$replace = array("B");
$arr = array("Hello","world","!");
print_r(str_ireplace($find,$replace,$arr));
?>
Running instance »
PHP String Reference