mysql - Querying a database within a PHP function -


this question has answer here:

i'm trying load data database using php, reason doesn't work when put inside function. if try code without function, works fine:

//$dbc connection $call1 = 0; $output = ''; $query = "select * artists order lname limit $call1, 15"; $result = mysqli_query($dbc, $query); while($row = mysqli_fetch_array($result)){     $output .= "<ul>";     $output .= "<li>" . $row['name'] . "</li>";     $output .= "</ul>"; }

however, when change code inside function, don't database (or @ least won't return anything):

//$dbc connection $call1 = 0; $output = ''; function loadartists($call){     $query = "select * artists order lname limit $call, 15";     $result = mysqli_query($dbc, $query);     while($row = mysqli_fetch_array($result)){         $output .= "<ul>";         $output .= "<li>" . $row['name'] . "</li>";         $output .= "</ul>";     } } loadartists($call1);

what doing wrong here?

you cannot use $dbc in function, because global variable.

you can use either

function loadartists($call){     global $dbc;     ... }

to make $dbc known loadartists() or pass second parameter 

function loadartists($dbc, $call){ ... }

and call 

loadartists($dbc, $call1);

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