Introducción a PHP y MySQL Book by Miguel a. Arias
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Introducción a PHP y MySQL

Introducción a PHP y MySQL


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International Edition


About the Book

PHP es un potente lenguaje, y su intérprete, bien como módulo del servidor web o bien como binario CGI, puede acceder a ficheros, ejecutar comandos o abrir conexiones de red desde el servidor. Estas propiedades hacen que, por omisión, sea inseguro todo lo que se ejecute en un servidor web. PHP está diseñado específicamente para ser un lenguaje más seguro para escribir aplicaciones CGI que Perl or C. Partiendo de un correcto ajuste de opciones de configuración para tiempo de ejecución y en tiempo de compilación, y el uso de prácticas de programación apropiadas, pueden proporcionarle la combinación de libertad y de seguridad que necesita.Dado que hay muchas vías para ejecutar PHP, existen muchas opciones de configuración para controlar su comportamiento. Al haber una extensa selección de opciones se garantiza poder usar PHP para un gran número de propósitos, pero a la vez significa que existen combinaciones que conllevan una configuración menos segura.La flexibilidad de configuración de PHP rivaliza igualmente con la flexibilidad de su código. PHP puede ser usado para construir completas aplicaciones de servidor, con toda la potencia de un usuario de consola, o se puede usar sólo desde el lado del servidor implicando un menor riesgo dentro de un entorno controlado. El cómo construir ese entorno, y cómo de seguro es, depende del desarrollador PHP. MySQL es muy utilizado en aplicaciones web, como Drupal o phpBB, en plataformas (Linux/Windows-Apache-MySQL-PHP/Perl/Python), y por herramientas de seguimiento de errores como Bugzilla. Su popularidad como aplicación web está muy ligada a PHP, que a menudo aparece en combinación con MySQL.MySQL es una base de datos muy rápida en la lectura cuando utiliza el motor no transaccional MyISAM, pero puede provocar problemas de integridad en entornos de alta concurrencia en la modificación. En aplicaciones web hay baja concurrencia en la modificación de datos y en cambio el entorno es intensivo en lectura de datos, lo que hace a MySQL ideal para este tipo de aplicaciones. Sea cual sea el entorno en el que va a utilizar MySQL, es importante monitorizar de antemano el rendimiento para detectar y corregir errores tanto de SQL como de programación.


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Product Details
  • ISBN-13: 9781492326427
  • Publisher: Createspace Independent Publishing Platform
  • Publisher Imprint: Createspace Independent Publishing Platform
  • Height: 229 mm
  • No of Pages: 208
  • Series Title: Spanish
  • Weight: 335 gr
  • ISBN-10: 1492326429
  • Publisher Date: 04 Sep 2013
  • Binding: Paperback
  • Language: Spanish
  • Returnable: N
  • Spine Width: 11 mm
  • Width: 152 mm


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