替换符号奇怪的情况

Question

foreach($ret as $object)
{
    $res = $object->...;
    $img_src = $res[0]->src;
    echo $img_src . '<br />';
    echo str_replace("&size=2", "", $img_src) . '<br /><br />';
}

$img_src ~ 'http://site.com/img.jpg&size=2'

And I have to receive same link but without &size=2. Why doesn't work my last line in code. It shows the same url.

Answer 1

Are you absolutely certain there are any goofy unprintable characters in your source string? Try debugging with this:

printf("%s
", join(':', str_split($img_src)));

And make sure you really have &size=2 in your string. If you see two consecutive colons, you've got something like a \0 or some other character mucking up the works in the middle of your string.