arrays - PHP: Check if special characters from a list are present in a string -


this newbie question.

let's have array of illegal characters, i.e.:

$special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}");

i need check if of these characters present in string, i.e.

$my_string = "abcde!fgh"

i have googled solution in simple manner haven't found satisfactory answer.

any on appreciated.

a concise way 2 data structures be:

count( array_intersect( str_split($my_string), $special_chars ) )

that tell how many of special characters in string.

you otherwise write loop character list , manually probe strpos.

the least effort converting special character list regex charclass , testing against string.


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