PHP只是使用strpos无法正常工作

Question

In php I want to simply find the percent in string value such as 33%. This below code works fine:

echo strpos("%", '33%') == true
    ? '33%'
    : '33' . '$';

but then when I put this percent into a variable, strpos() it doesn't work correctly, for example:

$move_money_data = '33%';
echo strpos("%", $move_money_data) == true
    ? $move_money_data
    : $move_money_data . '$';

I think the code is correct, but I don't know why when I put it into a variable, the result is not correct.

Answer 1

wrong order in strpos

$move_money_data = '33';
echo strpos($move_money_data, '%' ) === false ? ($move_money_data . '$') : $move_money_data;

//EDIT from php.net

int strpos ( string $haystack , mixed $needle [, int $offset = 0 ] )