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PHP IntlChar :: isalnum () function

|
Syntax:
bool IntlChar::isalnum ($codepoint)
Parameters: This function takes a single $codepoint parameter which is required. The input parameter is an integer value or a character that is encoded as a UTF-8 string.Returned value:if $codepoint is an alphanumeric character, then it returns True, otherwise it returns False.Program 1:  
// PHP code for illustration IntlChar::isalnum()
// Function 
// Input is of character type var_dump (IntlChar::isalnum ( " D " ));  
// Input data is of string type var_dump (IntlChar::isalnum ( "Geeksforengineer" ));  
// Input data of integer type var_dump (IntlChar::isalnum ( "234" ));  
// The input data has a special character type var_dump (IntlChar::isalnum ( "*" ));  
?>
Exit :
bool (true) NULL NULL bool (false)
Program 2:
// PHP code for illustration IntlChar::isalnum()
// function 
// Declare the $arr array $arr = array ( " 4 " , " 20001111 " , "^" , " " , " * " , "GeeksforGeeks" );  
// run loop for each array element foreach ( $arr as $val ) { // Validate each element as code point data var_dump (IntlChar::isalnum ( $val )); }
?>
Exit :
bool (true) NULL bool (false) NULL bool (false) NULL
Related Articles:
  • PHP | IntlChar::isalpha() Function
  • PHP | IntlChar::isdigit() function
  • PHP | IntlChar::isblank() function
  • PHP | IntlChar::isbase() function
Link: http://php.net/manual/en/intlchar.isalnum.php

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