In this tutorial, we are going to learn about how to remove the first n characters of a string in PHP.
Consider, we have a following string:
Now, we want to remove the first 2 characters
pa 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 n characters of the string, we can use the built-in
substr() function in PHP.
The substr() function accepts three arguments, the first one is
string, the second is start position, third is length (optional).
Here is an example, that removes the first 2 characters
pa from the
$place="paris"; $result = substr($place, 2); echo $result;
In the example above, we have passed
2 as a second argument to the
substr() function. so it begins the extraction at index
2, 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.