function to replace string in php

The functions used to replace strings in PHP are as follows: 1. str_replace(), used to replace matching items in the string; 2. str_ireplace(), similar to str_replace(), but different Upper and lower case; 3. preg_replace(), uses regular expressions for string replacement.

Function to replace string in PHP

Question: Used to replace string in PHP What are the string functions?

Answer: The following functions are provided in PHP for replacing strings:

1. str_replace()

str_replace() Function is used to replace one or more matches in a string.

Syntax:

<code class="php">str_replace(string needle, string replace, string subject)</code>

Parameters:

• needle - The string to find and replace
• replace - the string to replace needle
• subject - the string to replace

## 2. str_ireplace()

str_ireplace() function is similar to str_replace(), except that it is case-sensitive.

Syntax:

<code class="php">str_ireplace(string needle, string replace, string subject)</code>

Parameters:

• needle - The string to find and replace
• replace - the string to replace needle
• subject - the string to replace

## 3. preg_replace()

preg_replace()

function uses regular expressions to replace strings. Syntax:

<code class="php">preg_replace(string pattern, string replacement, string subject)</code>

Parameters:

pattern
• - Regular expression used to match strings
replacement
• - The string to replace the match with
subject
• - The string to replace

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