php - Different behavior based on double or single quote -


this question has answer here:

i have little question regarding use of double quote , single quote.

when use code below double quotes echo "": 

$result_entries = mysqli_query($con,"select * bhost_entries author_u_id='$user_info[u_id]'"); while($entries = $result_entries->fetch_object())   {   echo "   <tr>    <td>    {$entries->title}    </td>   </tr>   ";   }

..output be

entry1 entry2 entry3 etc..

but when use same code single quote echo '' i'll get:

{$entries->title} {$entries->title} {$entries->title} etc..

as output.

why behave differently?

appreciate thoughts.

this because main difference between single , double qoutes. single qoutes not parse variables while double qoutes parse variables.


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