Example :Input: str = "Geeks for Geeks" Output: Geeks for Geeks
Note.Symbols newlines (/ n) and tabs (/ t) are not printable characters.
Method 1: Using a generic regular expression:There are many regular expressions available. The best solution - remove all non-ASCII characters from the input string, which can be done with this preg_replace.
Example :
// PHP program to remove all unprintable
/ / character from a string
// A string with non-printable characters $str = "Geeks šžfor ÂGee ks" ;
// Using the preg_replace method to remove all
// non-printable character from string $str = preg_replace ( ’/ [x00-x1Fx80-xFF] /’ , ’’ , $str );
// Show change line echo ( $str );
?> Exit:Geeks for Geeks
Method 2: Usethe regular expression print.Another possible solution - use the regular expression print . The regular expression [: print:]means "any printable character" .Example :
/ / PHP program to remove all non-printable
// character from string
// A string with an unprintable character $str = " Geeks šžfor ÂGee ks " ;
// Using the preg_replace method to remove all
// non-printable character from string $str = preg_replace ( ’/ [[: ^ print:]] /’ , ’’ , $str );
// Show change line echo ( $str );
?> Exit:Geeks for Geeks
