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    Darren
    13 years ago
    I wrote this function for my personal use and figured I would share it. I am not sure if this is the appropriate forum but I wish I had this when I stumbled on to mysqli::prepare. The function is an update of the function I posted previously. The previous function could not handle multiple queries.

    For queries:
    Results of single queries are given as arrays[row#][associated Data Array]
    Results of multiple queries are given as arrays[query#][row#][associated Data Array]

    For queries which return an affected row#, affected rows are returned instead of (array[row#][associated Data Array])

    Code and example are below:

    <?php
    function mysqli_prepared_query($link,$sql,$typeDef = FALSE,$params = FALSE){
    if(    $stmt = mysqli_prepare($link,$sql)){
    if(    count($params) == count($params,1)){
    $params = array($params);
    $multiQuery = FALSE;
    } else {
    $multiQuery = TRUE;
    }

    if(    $typeDef){
    $bindParams = array();
    $bindParamsReferences = array();
    $bindParams = array_pad($bindParams,(count($params,1)-count($params))/count($params),"");
    foreach(    $bindParams as $key => $value){
    $bindParamsReferences[$key] = &$bindParams[$key];
    }
    array_unshift($bindParamsReferences,$typeDef);
    $bindParamsMethod = new ReflectionMethod('mysqli_stmt', 'bind_param');
    $bindParamsMethod->invokeArgs($stmt,$bindParamsReferences);
    }

    $result = array();
    foreach(    $params as $queryKey => $query){
    foreach(    $bindParams as $paramKey => $value){
    $bindParams[$paramKey] = $query[$paramKey];
    }
    $queryResult = array();
    if(    mysqli_stmt_execute($stmt)){
    $resultMetaData = mysqli_stmt_result_metadata($stmt);
    if(    $resultMetaData){
    $stmtRow = array();
    $rowReferences = array();
    while (    $field = mysqli_fetch_field($resultMetaData)) {
    $rowReferences[] = &$stmtRow[$field->name];
    }
    mysqli_free_result($resultMetaData);
    $bindResultMethod = new ReflectionMethod('mysqli_stmt', 'bind_result');
    $bindResultMethod->invokeArgs($stmt, $rowReferences);
    while(    mysqli_stmt_fetch($stmt)){
    $row = array();
    foreach(    $stmtRow as $key => $value){
    $row[$key] = $value;
    }
    $queryResult[] = $row;
    }
    mysqli_stmt_free_result($stmt);
    } else {
    $queryResult[] = mysqli_stmt_affected_rows($stmt);
    }
    } else {
    $queryResult[] = FALSE;
    }
    $result[$queryKey] = $queryResult;
    }
    mysqli_stmt_close($stmt);
    } else {
    $result = FALSE;
    }

    if(    $multiQuery){
    return     $result;
    } else {
    return     $result[0];
    }
    }
    ?>

    Example(s):
    For a table of firstName and lastName:
    John Smith
    Mark Smith
    Jack Johnson
    Bob Johnson

    <?php
    //single query, single result
    $query = "SELECT * FROM names WHERE firstName=? AND lastName=?";
    $params = array("Bob","Johnson");

    mysqli_prepared_query($link,$query,"ss",$params)
    /*
    returns array(
    0=> array('firstName' => 'Bob', 'lastName' => 'Johnson')
    )
    */

    //single query, multiple results
    $query = "SELECT * FROM names WHERE lastName=?";
    $params = array("Smith");

    mysqli_prepared_query($link,$query,"s",$params)
    /*
    returns array(
    0=> array('firstName' => 'John', 'lastName' => 'Smith')
    1=> array('firstName' => 'Mark', 'lastName' => 'Smith')
    )
    */

    //multiple query, multiple results
    $query = "SELECT * FROM names WHERE lastName=?";
    $params = array(array("Smith"),array("Johnson"));

    mysqli_prepared_query($link,$query,"s",$params)
    /*
    returns array(
    0=>
    array(
    0=> array('firstName' => 'John', 'lastName' => 'Smith')
    1=> array('firstName' => 'Mark', 'lastName' => 'Smith')
    )
    1=>
    array(
    0=> array('firstName' => 'Jack', 'lastName' => 'Johnson')
    1=> array('firstName' => 'Bob', 'lastName' => 'Johnson')
    )
    )
    */
    ?>

    Hope it helps =)

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