Correctly implement PHP to generate a unique identifier. Today, we will introduce in detail the sample code for generating a unique identifier in PHP :? Generate the unique identifier sha1 () function. the security hash algorithm (SHA1)
The security practice of PHP, which must be known by system administrators, is an open source server scripting language and widely used. The Apacheweb server provides the convenience of accessing files and content through HTTP or HTTPS. Improper
This example describes how PHP generates a method that does not duplicate identifiers. Share to everyone for your reference. The implementation methods are as follows:
To generate a unique, duplicate identity we are mainly based on the current time
The security practice of PHP, which must be known by system administrators, is an open source server scripting language and widely used. The Apacheweb server provides the convenience of accessing files and content through HTTP or HTTPS. Improper
UUID (Universally unique Identifier), the GUID is expected to generate a unique identifier within the entire space-time range, which is necessary in a distributed computing environment. However, if you simply want to generate a "local unique
The HP uniqid () function can be used to generate a unique identifier that is not duplicated, based on the current timestamp at the microsecond level. In the case of high concurrency or long intervals (such as looping code), there is a large amount
PHP, a nested abbreviated name, is an abbreviation for the English Super Text preprocessing language (Php:hypertext preprocessor). PHP is an HTML embedded language, PHP and Microsoft's ASP quite a bit similar, is a server-side implementation of
---------------Course Catalogue---------------001.[php first quarter] the 1th Chapter PHP Overview (1). avi002.[php first quarter] the 1th Chapter PHP Overview (2). avi003.[php first quarter] the 1th Chapter PHP Overview (3). avi004.[php first
GUID: The globally unique Identifier (globally unique identifier) is also known as the UUID (universally unique Identifier). A GUID is a 128-bit numeric identifier produced by a particular algorithm that indicates the uniqueness of the product.
Problem
What is PHP file? which software can be used to open
Workaround
PHP, a nested abbreviated name, is an abbreviation for the English Super Text preprocessing language (Php:hypertext preprocessor). PHP is an HTML embedded language, PHP and
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