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PHP manages freeing all resources. Users does not required to free file handle resource, database resources, memory, etc, unless programmer need to free resource during script execution.
(All resources are released after script execution)
PHP4 also have reference count feature. For example, memory for variables is shared when it assigned to other variable. If contents has been changed, PHP4 allocate new memory for it.
For example, programmer does not have to use pass by reference for large parameters for better performance with PHP4.
It would be a nice section for new PHP users, if there is "Resource Handling" section or like. Explanation about reference count feature in PHP4 would be very helpful to write better PHP4 scripts also.
Caractéristiques
- Identification HTTP avec PHP
- Cookies
- Sessions
- Utiliser les XForms
- Gestion des chargements de fichiers
- Utilisation des fichiers à distance
- Gestion des connexions
- Connexions persistantes aux bases de données
- Safe mode
- Utilisation des lignes de commande — Utiliser PHP en ligne de commande
- Introduction
- Différence avec les autres SAPIs
- Options — Options de ligne de commande
- Utilisation — Exécution de fichiers PHP
- Flux I/O — Flux d'entrée/sortie
- Shell Interactif
- Serveur web interne
- Configurations INI
- Ramasse-miettes (Garbage Collection)
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User Contributed Notes
Caractéristiques - [1 notes]
yohgaki at hotmail dot com ¶
12 years ago