php mysql count



you need to alias the aggregate using the as keyword in order to call it from mysql_fetch_assoc $result=mysql_query("select count() as total from students"); $data=mysql_fetch_assoc($result); echo $data['total'];.

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select count() may not give correct results if you are using "group by" or "having" in your query, as count() is an agregate function and resets eachtime a groupby column changes. select sum(..) left join .. group by having can be an alternative to subselects in mysql , and such queries cannot have  also discussed example on mysql count() function, count() with logical operator and count() using multiple tables. php mysql examples | wresource <meta name="description" content="exampleaggregatefunctionsandgroupingcountfunction php mysql examples | wresource"> 

php mysql count

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php and mysql code: <?php make a mysql connection $query = "select type, count(name) from products group by type"; $result = mysql_query($query) or die(mysql_error()); print out result while($row = mysql_fetch_array($result)){ echo "there are ". $row['count(name)'] ." ". $row['type'] ." items. $query = "select count(id) from table where toto=''"; $result = mysql_query($query) or die (mysql_error()); $resultat=mysql_fetch_row($result); echo $resultat[]; affichage du résultat (je rajoute ça pour les pauvres guss qui recherchent la façon de compter et l'affichage du résultat sur google et qui 

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when i put this in phpmyadmin, i get the exact results i want in a pretty table with two columns, the tkid and the count for how many times that tkid shows up in the xde_trooptrack_attendee table. i'm trying to write a php page to display this same data, and i'm not having any luck. here is what i have so far:. . . . . . query( 'select count (id) as nbnews from news' );. $donnees = $req >fetch();. $req >closecursor();. echo $donnees [ 'nbnews' ]; 

php mysql count

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<?php $con=mysqli_connect("localhost","my_user","my_password","my_db"); check connection if (mysqli_connect_errno()) { echo "failed to connect to mysql: " . mysqli_connect_error(); } $sql="select lastname,age from persons order by lastname"; if ($result=mysqli_query($con,$sql)) { return the number of  well organized and easy to understand web building tutorials with lots of examples of how to use html, css, javascript, sql, php, and xml.

php mysql count

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parameter, description. array, required. specifies the array. mode, optional. specifies the mode. possible values: default. does not count all elements of multidimensional arrays; counts the array recursively (counts all the elements of multidimensional arrays) 

php mysql count

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