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mysqli_result->current_field> <mysqli_stmt::store_result
[edit] Last updated: Fri, 18 Sep 2009

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The MySQLi_Result class

Увод

Represents the result set obtained from a query against the database.

Синтаксис за класове

MySQLi_Result
MySQLi_Result {
/* Properties */
int $current_field ;
int $field_count;
array $lengths;
int $num_rows;
/* Methods */
int mysqli_field_tell ( mysqli_result $result )
bool mysqli_result::data_seek ( int $offset )
mixed mysqli_result::fetch_all ([ int $resulttype ] )
mixed mysqli_result::fetch_array ([ int $resulttype ] )
object mysqli_result::fetch_field_direct ( int $fieldnr )
object mysqli_result::fetch_object ([ string $class_name [, array $params ]] )
mixed mysqli_result::fetch_row ( void )
int mysqli_num_fields ( mysqli_result $result )
bool mysqli_result::field_seek ( int $fieldnr )
void mysqli_result::free ( void )
array mysqli_fetch_lengths ( mysqli_result $result )
int mysqli_num_rows ( mysqli_result $result )
}

Съдържание



mysqli_result->current_field> <mysqli_stmt::store_result
[edit] Last updated: Fri, 18 Sep 2009
 
add a note add a note User Contributed Notes MySQLi_Result
sinisaculic at gmail dot com 21-Oct-2010 07:58
storing this object in ANY kind will result in storing an empty object... if you try to serialize it dump it or do anything with it you will end up with a empty object.

you have to pull all data out f the object and then store the data... no other way.
Anonymous 18-Apr-2010 05:39
Generally, it appears Mysqli OO vs Procedural style has no significant difference in speed, at least with the more generally used functions and methods (connect, close, query, free, etc).

With the fetch_* family of functions and methods dealing with result rows, however, Procedural wins out.  Averaging over a hundred or so tests with a result set of 180,000 records, and using mysqli_fetch_*() functions vs. their mysqli_result::fetch_*() counterpart object methods to read and iterate over all records, all of the mysqli_fetch_*() functions win by ~0.1 seconds less.

This is interesting considering we're dealing with the same result object in both styles.

This was using Vistax64, PHP5.3.2, Mysql 5.1.45, using a bit of this code:

<?php

// procedural - takes 0.1 seconds less than OO here
$stopwatch = microtime(true);
while(
$row = mysqli_fetch_assoc($result)){
    ++
$z;
    }
echo
microtime(true) - $stopwatch;

// OO
$stopwatch = microtime(true);
while(
$row = $result->fetch_assoc()){
    ++
$z;
    }
echo
microtime(true) - $stopwatch;

?>
blar at blar dot de 07-Jan-2009 07:47
Extending the MySQLi_Result

<?php

class Database_MySQLi extends MySQLi
{
    public function
query($query)
    {
       
$this->real_query($query);
        return new
Database_MySQLi_Result($this);
    }
}

class
Database_MySQLi_Result extends MySQLi_Result
{
    public function
fetch()
    {
        return
$this->fetch_assoc();
    }

    public function
fetchAll()
    {
       
$rows = array();
        while(
$row = $this->fetch())
        {
           
$rows[] = $row;
        }
        return
$rows;
    }
}

?>

 
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