remove a substring from a string at a specific index in php

You can remove a substring from a string at a specific index in PHP using the substr_replace() function. Here is an example code:

main.php
$string = "Hello world!";
$start_index = 6;
$length = 5;

$new_string = substr_replace($string, "", $start_index, $length);

echo $new_string; // output is "Hello!"
165 chars
8 lines

In this example, the substr_replace() function takes four arguments: the original string $string, an empty string "" which will replace the substring, the starting index $start_index of the substring, and the length $length of the substring to be removed.

The substr_replace() function returns the modified string stored in the variable $new_string, and prints it using the echo statement.

Note that the original string is not modified, and a new string is created with the updated value.