w3resource

PHP MySQLi: real_query() function

Description

The mysqli_real_query function / mysqli::real_query — Execute an SQL query

Syntax:

Object oriented style

bool mysqli::real_query ( string $query )

Procedural style

bool mysqli_real_query ( mysqli $link , string $query )

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
query The query, as a string.
Data inside the query should be properly escaped.
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");

// Check connection
if (mysqli_connect_errno()) {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

// Check for errors
if($con->connect_errno){
echo $con->connect_error;
}

// Execute query
$result = $con->real_query("Select * From users Where username='$username' And password='$password'");

// Always check for errors
if($con->connect_errno){
echo $con->connect_error;
}

return $result == true;


mysqli_close($con);
?>

See also

PHP Function Reference

Previous: real_escape_string
Next: reap_async_query



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;