Re: [PHP] php string syntax question with html

On Thu, Mar 11, 2010 at 01:17:57AM +0000, Ashley Sheridan wrote:

<snip>

> 
> You're using single quotes in your string, so you can't have PHP parse
> the string for variables to extend into their corresponding values. If
> you wish to do that, use either double-quoted strings or heredoc/nowdoc
> syntax:
> 
> $styleSheets[0]["sheet"]="<link href=
> \"{$_SERVER['DOCUMENT_ROOT']}/wp-content/themes/theme/style/white.css\"
> rel=\"stylesheet\" type=\"text/css\" />";
> 
> or
> 
> $styleSheets[0]["sheet"]= <<<EOS
> <link
> href="{$_SERVER['DOCUMENT_ROOT']}/wp-content/themes/theme/style/white.css"
> rel="stylesheet" type="text/css" />
> EOS;
> 
> In both cases note the {} surrounding the variable. This is because PHP
> needs to be told that you are trying to access an array element,
> otherwise it will match only as far as $_SERVER and think that the
> [ character starts regular text. This also works with object properties
> and method return values:
> 
> echo "{$some_obect->some_value} and {$some_object->some_method()}";

Um, not exactly. "This will parse correctly: $_SERVER[DOCUMENT_ROOT]."
You just can't use single quotes inside the brackets to denote the array
index, when the whole string is surrounded by double quotes. A more
pedestrian example:

$message = "The value of foo is $_POST[bar]\n";

You are, however, right about object properties. I know of no other way
to parse them inside a quoted string, other than using braces.

Paul

-- 
Paul M. Foster