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
Previous: multi_query
Next: options
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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