NYCPHP Meetup

[Craig Thomas]

Michael Southwell wrote:
> All strings are evaluated as zero unless they begin with a character 
> which can be interpreted as a numeral.  You can test this as follows:
> 
> echo intval( 'a string');
> 
> see 
> http://us3.php.net/manual/en/language.types.string.php#language.types.string.conversion 
> for more information

>>if('one' == 0){
>>        echo 'one is equal to zero';
>>}
>>you will get 'one is equal to zero'. This may be a stupid question, but
>>why if you compare a string to zero, does it evaluate to true?

Try:

if('one' === 0){
  echo 'one is equal to zero?';
}

http://www.php.net/manual/en/language.operators.comparison.php