{"id":4877,"date":"2025-11-28T14:11:11","date_gmt":"2025-11-28T13:11:11","guid":{"rendered":"https:\/\/sutilweb.eu\/?page_id=4877"},"modified":"2025-11-28T14:11:12","modified_gmt":"2025-11-28T13:11:12","slug":"05-tipos-de-datos-en-php","status":"publish","type":"page","link":"https:\/\/sutilweb.eu\/index.php\/lenguajes\/php\/php-practico\/05-tipos-de-datos-en-php\/","title":{"rendered":"05. Tipos de datos en PHP"},"content":{"rendered":"\n

Comprender los tipos de datos en PHP<\/strong> es uno de los primeros pasos para dominar el lenguaje. PHP es flexible, potente y ampliamente utilizado en el desarrollo web, especialmente cuando trabajamos con WordPress<\/strong>, MVC<\/strong> y aplicaciones conectadas a MySQL<\/strong>. En este cap\u00edtulo veremos los tipos de datos principales, cu\u00e1ndo se utilizan y ejemplos sencillos para que puedas entenderlos sin dificultad.<\/p>\n\n\n\n

Tipos de datos principales en PHP<\/h2>\n\n\n\n

Tipos escalares<\/h3>\n\n\n\n

Los tipos escalares son valores simples y b\u00e1sicos.<\/p>\n\n\n\n

1. Boolean (bool)<\/strong>
Indica si algo es verdadero<\/strong> o falso<\/strong>.
Ejm<\/strong>
<\/p>\n\n\n\n

$activo = true;<\/code><\/pre>\n\n\n\n
2. Integer (int)<\/strong>
N\u00fameros enteros, sin decimales.<\/p>\n\n\n\n
Ejm<\/strong><\/p>\n\n\n\n
$edad = 53;<\/code><\/pre>\n\n\n\n
3. Float (float)<\/strong>
N\u00fameros con decimales.<\/p>\n\n\n\n
Ejm<\/strong><\/p>\n\n\n\n
$precio = 19.95;<\/code><\/pre>\n\n\n\n
4. String (string)<\/strong>
Cadenas de texto.<\/p>\n\n\n\n
Ejm<\/strong><\/p>\n\n\n\n
$nombre = \"Sutil Web\";<\/code><\/pre>\n\n\n\n
Tipos compuestos<\/h3>\n\n\n\n
Se utilizan para almacenar conjuntos o colecciones de datos.<\/p>\n\n\n\n
5. Array<\/strong>
\u00datil para guardar listas, datos de formularios o configuraciones.<\/p>\n\n\n\n
Ejm<\/strong><\/p>\n\n\n\n
$colores = [\"azul\", \"gris\", \"blanco\"];<\/code><\/pre>\n\n\n\n
6. Object<\/strong>
Representa una instancia de una clase. Fundamental en MVC<\/strong>.<\/p>\n\n\n\n
Ejm<\/strong><\/p>\n\n\n\n
class Usuario {\n    public $nombre;\n}\n$u = new Usuario();\n$u->nombre = \"Francisco\";<\/code><\/pre>\n\n\n\n
Tipos especiales<\/h3>\n\n\n\n
Se utilizan para situaciones concretas.<\/p>\n\n\n\n
7. NULL<\/strong>
Indica ausencia de valor.<\/p>\n\n\n\n
Ejm<\/strong><\/p>\n\n\n\n
$valor = null;<\/code><\/pre>\n\n\n\n
8. Resource<\/strong>
Hace referencia a recursos externos como conexiones a base de datos.<\/p>\n\n\n\n
Ejemplo con MySQLi:<\/p>\n\n\n\n
Ejm<\/strong><\/p>\n\n\n\n
$conexion = mysqli_connect(\"localhost\", \"root\", \"\", \"agenda\");<\/code><\/pre>\n\n\n\n
Ejemplos pr\u00e1cticos \u00fatiles<\/h2>\n\n\n\n
Para un proyecto t\u00edpico en MVC<\/strong>, podr\u00edas utilizar varios tipos de datos combinados:<\/p>\n\n\n\n
Ejemplo de datos de un contacto:<\/p>\n\n\n\n
$contacto = [\n  \"nombre\" => \"Luis\",\n  \"telefono\" => 678123456,\n  \"email\" => \"luis@example.com\",\n  \"descuento\" => 10.5,\n  \"activo\" => true\n];<\/code><\/pre>\n\n\n\n
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