'{$id'}' confused

[robert_gsfame]

what is the different between "SELECT * FROM table WHERE id='{$id}' and

"SELECT * FROM table WHERE id='id'"

 

what is the really use of bracket "{}" in the query

 

thx

[roopurt18]

This is actually a PHP question.

 

PHP has several different ways in which you can specify strings: single quotes, double quotes, HEREDOC, and one other I think.

 

When using double-quoted or HEREDOC strings, you can use curly brackets as a shortcut to string concatenation.

 

<?php

$somevar = 'Fred';

echo 'Hello, ' . $somevar . "\n";
echo "Hello, " . $somevar . "\n";
echo "Hello, {$somevar}\n";

?>

 

Those should all produce the same thing.