string manipulation code snippets in php

create a password with a custom length and lowercase letters in php

create a password with uppercase letters in php

create a password with uppercase, lowercase letters and numbers in php

find the extension of a file in php

find the first index of a substring in a string in php

find the name of a json file in php

find the thirteen adjacent digits in the 1000-digit number that have the greatest product. what is the value of this product? in php

format a date in to the format 'yyyy-mm-dd hh:mm:ss' in php

format a date in to the format month day, year in php

generate a random password with letter, numbers and at least one special character in php

prepend a string to the beginning of another string in php

remove a substring from a string in php

replace a substring in a string in php