CODEWITHSUNDEEP
phpvariablesloops
Kareem
Kareem

Reputation: 1

PHP - Variable inside a loop and another one outside

as the title said, i've this block of code and i want to know if i can write a variable that takes the name of another one similar to it but outside the loop.

is that makes a problem ?!

<?php 
   $query = "SELECT * FROM subjects";
   $subjects_set = mysql_query($query);
   errors_of($subjects_set);

    while ($db_subjects_rows = mysql_fetch_array($subjects_set)){
           echo "<li>{$db_subjects_rows["menu_name"]}</li>";

           $pages_set = mysql_query("SELECT * FROM pages WHERE subject_id = {$db_subjects_rows["id"]}");


        errors_of($pages_set);
        echo "<ul class=\"pages\">";
        while ($db_pages_rows = mysql_fetch_array($pages_set)){
        echo "<li>{$db_pages_rows["menu_name"]}</li>";
        }
            echo "</ul>";                       
    }

?>

Upvotes: 0

Views: 1136

Answers (2)

Ritesh Kumar Gupta
Ritesh Kumar Gupta

Reputation: 5191

All the variables that is used outside the loop can be accessed inside the loop.Refer this manual to know more about the PHP Variable Scope.

Upvotes: 1

omars
omars

Reputation: 8704

Using local variables inside a loop does not create a problem, if thats what you are asking, you should read about variable scopes

The function has a scope, the class has a scope and there is a global scope

Upvotes: 2

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