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PHP 8.4.0 RC4 available for testing
Getting Started
Introduction
A simple tutorial
Language Reference
Basic syntax
Types
Variables
Constants
Expressions
Operators
Control Structures
Functions
Classes and Objects
Namespaces
Enumerations
Errors
Exceptions
Fibers
Generators
Attributes
References Explained
Predefined Variables
Predefined Exceptions
Predefined Interfaces and Classes
Predefined Attributes
Context options and parameters
Supported Protocols and Wrappers
Security
Introduction
General considerations
Installed as CGI binary
Installed as an Apache module
Session Security
Filesystem Security
Database Security
Error Reporting
User Submitted Data
Hiding PHP
Keeping Current
Features
HTTP authentication with PHP
Cookies
Sessions
Handling file uploads
Using remote files
Connection handling
Persistent Database Connections
Command line usage
Garbage Collection
DTrace Dynamic Tracing
Function Reference
Affecting PHP's Behaviour
Audio Formats Manipulation
Authentication Services
Command Line Specific Extensions
Compression and Archive Extensions
Cryptography Extensions
Database Extensions
Date and Time Related Extensions
File System Related Extensions
Human Language and Character Encoding Support
Image Processing and Generation
Mail Related Extensions
Mathematical Extensions
Non-Text MIME Output
Process Control Extensions
Other Basic Extensions
Other Services
Search Engine Extensions
Server Specific Extensions
Session Extensions
Text Processing
Variable and Type Related Extensions
Web Services
Windows Only Extensions
XML Manipulation
GUI Extensions
Keyboard Shortcuts
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Introduction »
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Manuel PHP
Référence des fonctions
Extensions relatives aux variables et aux types
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Vérification des types de caractères
Introduction
Installation/Configuration
Pré-requis
Installation
Fonctions Ctype
ctype_alnum
— Vérifie qu'une chaîne est alphanumérique
ctype_alpha
— Vérifie qu'une chaîne est alphabétique
ctype_cntrl
— Vérifie qu'un caractère est un caractère de contrôle
ctype_digit
— Vérifie qu'une chaîne est un entier
ctype_graph
— Vérifie qu'une chaîne est imprimable
ctype_lower
— Vérifie qu'une chaîne est en minuscules
ctype_print
— Vérifie qu'une chaîne est imprimable
ctype_punct
— Vérifie qu'une chaîne contient de la ponctuation
ctype_space
— Vérifie qu'une chaîne n'est faite que de caractères blancs
ctype_upper
— Vérifie qu'une chaîne est en majuscules
ctype_xdigit
— Vérifie qu'un caractère représente un nombre hexadécimal
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