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to call a stored procedure from php

 2 years ago
source link: https://www.codesd.com/item/to-call-a-stored-procedure-from-php.html
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to call a stored procedure from php

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I'm calling a stored procedure from php

<?php
include('global/db.php');
$id = 1;
$base = conn();
$query = "CALL get_id(:id,@userid)";
$stmt = $base->prepare($query);
$stmt->bindParam(':id',$id);
$stmt->execute();
print_r($stmt->fetch());
?>

the stored procedure looks like this

BEGIN
SET @userid = (SELECT * FROM user WHERE user.id = id);
SELECT @userid;
END

the procedure parameters

IN id int(10), OUT userid VARCHAR(255)

Questions:

  • why does my result return nothing?
  • what data type does my output variable @userid need to be?

Your stored procedure has some problems.

Since you have an output userid why this @userid.

Also you are outputting userid , So there is no need to SELECT it

Another thing is, you can't select the entire row into a single variable, for multiple columns you should use multiple output variables.

BEGIN
    SET userid = (SELECT column_name FROM user WHERE user.id = id);
END

Update

$result = $base->query("CALL get_id($id)");
while($data = $result->fetch_array(MYSQL_ASSOC)){
   echo $data['column_name'];
}



report

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