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PHP mysqli: store_result() function

mysqli_store_result function / mysqli::store_result

The mysqli_store_result function / mysqli::store_result — transfers a result set from the last query.

Syntax:

Object oriented style

mysqli_result mysqli::store_result ([ int $option ] )

Procedural style

mysqli_result mysqli_store_result ( mysqli $link [, int $option ] )

Parameter:

Name Description Required/Optional
link A link identifier returned by mysqli_connect() or mysqli_init() Required for procedural style only and Optional for Object oriented style
option The option that you want to set. It can be one of the following values: Required for procedural style only and Optional for Object oriented style
  Valid options  
  Name Description
MYSQLI_STORE_RESULT_COPY_DATA Copy results from the internal mysqlnd buffer into the PHP variables fetched. By default, mysqlnd will use a reference logic to avoid copying and duplicating results held in memory. For certain result sets, for example, result sets with many small rows, the copy approach can reduce the overall memory usage because PHP variables holding results may be released earlier (available with mysqlnd only, since PHP 5.6.0)

Usage: Procedural style

mysqli_stmt_init(connection);

Parameter:

Name Description Required/Optional
connection Specifies the MySQL connection to use Required

Return value:

Returns a buffered result object or FALSE if an error occurred..

Version: PHP 5, PHP 7

Example:

<?php
$con=mysqli_connect("localhost","user1","datasoft123","hr");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

$city="Paris";

// Create a prepared statement
$stmt=mysqli_stmt_init($con);

if (mysqli_stmt_prepare($stmt,"SELECT District FROM city WHERE Name=?"))
  {

  // Bind parameters
  mysqli_stmt_bind_param($stmt,"s",$city);

  // Execute query
  mysqli_stmt_execute($stmt);

  // Bind result variables
  mysqli_stmt_bind_result($stmt,$district);

  // Fetch value
  mysqli_stmt_fetch($stmt);

  printf("%s is in district %s",$city,$district);

  // Close statement
  mysqli_stmt_close($stmt);
  }

mysqli_close($con);
?>

See also

PHP Function Reference

Previous: stmt_init
Next: thread_id



PHP: Tips of the Day

var_export(): var_export() dumps a PHP parseable representation of the item.

You can pass true as the second parameter to return the contents into a variable.

Example:

<?php
$myarray = [ "PHP", "Tips" ];
$mystring = "PHP Tips";
$myint = 28;

var_export($myarray);
var_export($mystring);
var_export($myint);
?>

Output:

array (
  0 => 'PHP',
  1 => 'Tips',
)'PHP Tips'28

To put the content into a variable, you can do this:

$array_export = var_export($myarray, true);
$string_export = var_export($mystring, true);
$int_export = var_export($myint, 1); // any `Truthy` value

After that, you can output it like this:

printf('$myarray = %s; %s', $array_export, PHP_EOL);
printf('$mystring = %s; %s', $string_export, PHP_EOL);
printf('$myint = %s; %s', $int_export, PHP_EOL);

Example:

<?php
$myarray = [ "PHP", "Tips" ];
$mystring = "PHP Tips";
$myint = 28;
$array_export = var_export($myarray, true);
$string_export = var_export($mystring, true);
$int_export = var_export($myint, 1);
printf('$myarray = %s; %s', $array_export, PHP_EOL);
printf('$mystring = %s; %s', $string_export, PHP_EOL);
printf('$myint = %s; %s', $int_export, PHP_EOL);
?>

This will produce the following output:

Output:

$myarray = array (
  0 => 'PHP',
  1 => 'Tips',
);
$mystring = 'PHP Tips';
$myint = 28;