PHP String Functions
In this tutorial you will learn about some common string functions in PHP. This includes:
- Length of a string
- Splitting the string into an array
- Joining array elements into a single string
- Repeat the similar string into multiple times
- Remove the HTML tags from a string
1. Length of a string
The function 'strlen' is used to return the length of the string that is passed as an argument.
Syntax:
strlen(stringname);
Example:
$string="Baskar";
strlen($string); Output : 6
2. Splitting a string into an array
The function 'explode' is used to split a string into an array using a separator. It takes the separator and the string as its argument.
Syntax:
explode(separator,stringname);
Example:
$string="11-02-2005"
explode("-",$string); Output : 11 in array[0] , 02 in array[1] , 2005 in array[2]
3. Joining the array elements into a single string
The function 'join' is used to join various array elements into a single string. Alternatively 'implode' can also be used to join array elements into a string.
join(separator,arrayname);
(or)
implode(separator,arrayname);
Example:
$arraystring=array("s","baskar","shun");
implode("/",$arraystring); Output : s/baskar/shun
4. Repeating a string 'n' times
The function 'str_repeat' is used to repeat a given string 'n' times. The function takes the string and the number of times to be repeated as its argument.
Syntax:
str_repeat($string,integervalue);
Example:
str_repeat("dd",3); Output : dddddd
5. Remove HTML tags from the string
The function 'strip_tags' is used to remove the HTML tags present in a string by taking the string as its argument.
Syntax:
strip_tags($string);
Example:
strip_tags("Baskar s <br> Name",3); Output : Baskar S Name
That' it you've learnt about some common string functions used in PHP.