In this tutorial, we are going to learn about how to remove the first 4 characters of a string in PHP.
Consider, we have a following string:
Now, we want to remove the first 4 characters
pari from the above string.
Note: In PHP, strings are the sequence of characters that can be accessed by using its character index, where the first character index is 0, second character is 1 and the first character index is -1, etc.
To remove the first 4 characters of the string, we can use the built-in
substr() function by passing
$string , 4 as a arguments.So, it returns a new string by removing the first 4 characters from it.
The substr() function accepts three arguments, the first one is
string, the second is start position, third is length (optional).
Here is an example :
$place="paris"; $result = substr($place, 4); echo $result;
In the example above, we have passed
4 as a second argument to the
substr() function. so it begins the extraction at index
4, and extract the rest of a string.
substr() function doesn’t mutate the original string, instead of it creates a new string with the modified data.