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PHP mysqli: next_result() function

mysqli_next_result() function / mysqli::next_result

The mysqli_next_result() function / mysqli::next_result prepares the next result set from mysqli_multi_query().

Syntax:

Object oriented style

bool mysqli::next_result ( void )

Procedural style

bool mysqli_next_result ( mysqli $link )

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

Usage: Procedural style

mysqli_next_result(connection);

Parameter:

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

Return value:

Returns TRUE on success or FALSE on failure.

Version: PHP 5, PHP 7

Example:

<?php
$con = mysqli_connect("localhost","user1","datasoft123","hr");

$con=mysqli_connect("localhost","my_user","my_password","my_db");

if (mysqli_connect_errno($con)){
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

$sql = "SELECT emp_name FROM emp;SELECT country FROM emp";


if (mysqli_multi_query($con,$sql)){
  do{
    // Store first result set
    if ($result=mysqli_store_result($con)){
      while ($row=mysqli_fetch_row($result)){
        print $row[0];
        print "\n";
      }      
    }
  }while (mysqli_next_result($con));
}

mysqli_close($con);
?>

See also

PHP Function Reference

Previous: multi_query
Next: options



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PHP: Tips of the Day

Getting all defined constants

To get all defined constants including those created by PHP use the get_defined_constants function:

Example:

<?php
$constants = get_defined_constants();
var_dump($constants); // pretty large list

Output:

array(2250) {
  ["E_ERROR"]=>
  int(1)
  ["E_RECOVERABLE_ERROR"]=>
  int(4096)
  ["E_WARNING"]=>
  .....
  .....
  resource(1) of type (stream)
  ["STDOUT"]=>
  resource(2) of type (stream)
  ["STDERR"]=>
  resource(3) of type (stream)
}

To get only those constants that were defined by your app call the function at the beginning and at the end of your script (normally after the bootstrap process):

<?php
$constants = get_defined_constants();
define("HELLO", "hello");
define("WORLD", "world");
$new_constants = get_defined_constants();
$myconstants = array_diff_assoc($new_constants, $constants);
var_export($myconstants);

Output:

array (
  'HELLO' => 'hello',
  'WORLD' => 'world',
)

It's sometimes useful for debugging

 

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