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PHP mysqli: stmt_init() function

mysqli_stmt_init() function / mysqli::stmt_init

The mysqli_stmt_init() function / mysqli::stmt_init initializes a statement and returns an object suitable for mysqli_stmt_prepare().

Syntax:

Object oriented style

mysqli_stmt mysqli::stmt_init ( void )

Procedural style

mysqli_stmt mysqli_stmt_init ( 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_stmt_init(connection);

Parameter:

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

Return value:

Returns an object.

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);
?>

Sample Output:

System status: Uptime: 15909 Threads: 2 Questions: 112 Slow queries: 0 Opens: 16 Flush tables: 1 Open tables: 0 Queries per second avg: 0.7

See also

PHP Function Reference

Previous: stat
Next: store_result



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;