How to find if a string has all english or arabic letters. You can look for Arabic characters with regexp.[a-zA-Z] make the regex to find one letter, lowercase OR uppercase (note that you could use insteadHow do I check if a string contains a specific word? How does PHP foreach actually work? I want to create a password validation method so i want to check whether sring contains at least 1 uppercase letter how do i do this ?You can create a more advanced expression for validating the password (e.g. must contain at least one upper case character and a number, but no symbols or Home. How to. Php. Java.
Python string quick start tutorial. PHP empty() vs isset() vs isnull() vs boolean check. Today I had to deal with a big file full of different strings. I had to check whether the string contains uppercase characters or not. Ive written a simple script and I think it might be useful for you.How to Show Only Duplicate Values From an Array With PHP. The following function checks if a string contains only specified characters.if (strcontainsonly(username, allowed) false) echo "Please, use only lower and upper case characters, numbers and dashes" I am trying to create a function in python that changes all characters of a string to uppercase (trying to create the python upper function from scratch).PHP Check if string contains a letter. I am creating a login and want to allow my users to login either by username or email. To explain the regular expression used: / Opening