IntlChar::isIDStart() function in PHP

The IntlChar::isIDStart() function is used to check whether the entered character is permissible since the first character is anidentifier or not.

Syntax

bool IntlChar::isIDStart(val)

Parameters

• val − A character or integer value encoded as a UTF-8 string.

Return

The IntlChar::isIDStart()function returns TRUE if val is an identifier character.

Example

The following is an example −

";
   var_dump(IntlChar::isIDStart("9"));
   echo "
";
   var_dump(IntlChar::isIDStart("A"));
?>

Output

The following is the output −

NULL
bool(false)
bool(true)