mysql - Query failed in php - 


$query = "select * student student_id = $child , school_id = $college"; $result = mysqli_query($conic, $query);   if(!$result){       die(" query failed");       echo 'error here';   } else {

i trying retrieve information sql database query seems fail ideas?

you must learn more : how retrieve data database using select in php

so try out following example display records student table

    <?php $dbhost = 'localhost'; $dbuser = 'root'; $dbpass = 'rootpassword'; $conn = mysql_connect($dbhost, $dbuser, $dbpass); if(! $conn ) {   die('could not connect: ' . mysql_error()); } $sql = "select * student student_id = '"$child"' , school_id = '"$college"' ";  mysql_select_db('test_db'); $retval = mysql_query( $sql, $conn ); if(! $retval ) {   die('could not data: ' . mysql_error()); } while($row = mysql_fetch_array($retval, mysql_assoc)) {     // code here  }  echo "fetched data successfully\n"; mysql_close($conn); ?>

note

the mysql extension deprecated , removed in future: use mysqli or pdo


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