isNumber() public static method

Checks if the given character can be a part of a number.
public static isNumber ( string $str ) : boolean
$str string String to be checked.
return boolean
Example #1
0
 public function testIsNumber()
 {
     $this->assertTrue(Context::isNumber('+'));
     $this->assertTrue(Context::isNumber('-'));
     $this->assertTrue(Context::isNumber('.'));
     $this->assertTrue(Context::isNumber('0'));
     $this->assertTrue(Context::isNumber('1'));
     $this->assertTrue(Context::isNumber('2'));
     $this->assertTrue(Context::isNumber('3'));
     $this->assertTrue(Context::isNumber('4'));
     $this->assertTrue(Context::isNumber('5'));
     $this->assertTrue(Context::isNumber('6'));
     $this->assertTrue(Context::isNumber('7'));
     $this->assertTrue(Context::isNumber('8'));
     $this->assertTrue(Context::isNumber('9'));
     $this->assertTrue(Context::isNumber('e'));
     $this->assertTrue(Context::isNumber('E'));
 }