Given a string, check if all characters of it are in lowercase.
Input : gfg123 Output : No Explanation : There are characters '1', '2' and '3' that are not lower- case Input : geeksforgeeks Output : Yes Explanation : The string "geeksforgeeks" consists of all lowercase letters.
The above problem can be solved using the in-built functions in PHP. We store multiple values in an array and check using the in-built function in php to chech whether all the characters are lowercase.
We solve the given problem using the in-built functions in PHP and iterate from a given array of strings.We use the following in-built function in PHP:
- ctype_lower : Returns true if all of the characters in the provided string, text, are lowercase letters. Otherwise returns false.
No Yes No
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