PHP String

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Installing and configuring PHP String Functions

Requirements

PHP String functions do not require any external library files.

Installation

Since PHP String functions are part of the PHP core, they don't require any installation.

Runtime Configuration

You don't need to add any directive in php.ini for running PHP String functions.

Resource Types

PHP String functions have no defined resource types defined.

Predefined constants

In the following table, we have given a list of constants which are part of the PHP core.

String constants

Constant's Name

Type

CRYPT_SALT_LENGTH

Integer

CRYPT_STD_DES

Integer

CRYPT_EXT_DES

Integer

CRYPT_MD5

Integer

CRYPT_BLOWFISH

Integer

HTML_SPECIALCHARS

Integer

HTML_ENTITIES

Integer

ENT_COMPAT

Integer

ENT_QUOTES

Integer

ENT_NOQUOTES

Integer

CHAR_MAX

Integer

LC_CTYPE

Integer

LC_NUMERIC

Integer

LC_TIME

Integer

LC_COLLATE

Integer

LC_MONETARY

Integer

LC_ALL

Integer

LC_MESSAGES

Integer

STR_PAD_LEFT

Integer

STR_PAD_RIGHT

Integer

STR_PAD_BOTH

Integer