Answers for "replace define value php"

php str_replace

<?php
//str_replace("Original Value", "Value to be replaced", "String");
$result = str_replace("1", "2", "This is number 1");
// Output: This is number 2
?>

replace in php

# for replace someting in string use this function
# str_replace("1st param for select","2nd param for replace with","3rd your string")
<?php
$string = str_replace(" ", "_", "Hello World");
// Output will be : Hello_world
?>