Answers for "mysqli connect query"

PHP
1

mysqli_connect php

<?php
$enlace = mysqli_connect("127.0.0.1", "mi_usuario", "mi_contraseña", "mi_bd");

if (!$enlace) {
    echo "Error: No se pudo conectar a MySQL." . PHP_EOL;
    echo "errno de depuración: " . mysqli_connect_errno() . PHP_EOL;
    echo "error de depuración: " . mysqli_connect_error() . PHP_EOL;
    exit;
}

echo "Éxito: Se realizó una conexión apropiada a MySQL! La base de datos mi_bd es genial." . PHP_EOL;
echo "Información del host: " . mysqli_get_host_info($enlace) . PHP_EOL;

mysqli_close($enlace);
?>
Posted by: Guest on September-05-2021
3

query php

<?php 
// MySqli connection
$mysqli = new mysqli("localhost", "my_username", "my_password", "my_database");

// Errors
if($mysqli->connect_error) {
  echo "<b>Failed to connect to MySQL: </b>" . $mysqli->connect_error;
}

// Query
$selectQuery = $mysqli->prepare("SELECT * FROM my_table");
$selectQuery->execute();
$selectQueryResult = $selectQuery->get_result();

// Loop 
while($selectQueryRow = $selectQueryResult->fetch_array()) {
  echo $selectQueryRow['my_column'];
}

// Example
$selectUsername = $mysqli->prepare("SELECT * FROM users");
$selectUsername->execute();
$selectUsernameResult = $selectUsername->get_result();
while($selectUsernameRow = $selectUsernameResult->fetch_array()) {
  echo $selectUsernameRow['username'];
}
Posted by: Guest on October-06-2020

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