Base package
Install the complete package with local command reference and every published mode.
install randrand
pwd/sandboxdir 1 . -Fconfig/
data/
logs/
src/
tmp/rand 10 1Minimum exceeds maximumrand -s 327f3d9a2c8e41b650rand -uuid7f3d9a2c8e41b650
Overview
Use the default modes for tokens, random keys, temporary identifiers or other values that must be hard to predict. -mt exists for fast deterministic-style workloads and tests; it is deliberately separate from the secure generator.
Random does not always mean secret
Secure integers, bytes and strings use the cryptographic random source. A UUID is designed as an identifier, not a secret, and -mt can be reproducible when seeded, so MT output must not be used for passwords, access tokens or cryptographic keys.
Syntax
rand [min [max]]Reference
randgenerate a cryptographic integer from 0 to PHP_INT_MAX
rand <max>generate a cryptographic integer from 0 to max
rand <min> <max>generate a cryptographic integer in the selected range
rand -n <count> [min] [max]generate several integers
rand -b <bytes>generate cryptographic random bytes as hexadecimal
rand -s <length>generate a cryptographic alphanumeric string
rand -uuidgenerate an RFC 4122 version 4 UUID
rand -mt [min] [max]generate a fast non-cryptographic integer
rand -mt -seed <integer>seed the MT generator before generation
rand -maxshow integer generator limits
Interactive sandbox preview
Run the prepared examples directly on the page. Their results are prebuilt and shown in the browser; no terminal command is executed on the server.
Install and manage
Install the current compatible version. Choose Base for the complete feature set or Minimum for the reduced package; use upgrade to update a module that is already installed.
Base and Minimum are two packages of the same current module release, not separate command versions.
Minimum package
Install the reduced package. Local reference is omitted;
install rand -mExact public version
Install exactly this published version.
install rand -v 1.1.2Check or update
Ask upgrade to check compatibility and replace the installed block only when needed.
upgrade randRemove module
Remove the extension block while leaving the core and unrelated modules intact.
install rand -uExamples
Examples are copyable command lines, not actions executed by this website. Review paths, permissions and destructive flags before running them on a real project.
rand -max | rand 1 100secure 9223372036854775807
mt 2147483647
42rand -n 5 1 107f3d9a2c8e41b650rand -s 327f3d9a2c8e41b650rand -uuid7f3d9a2c8e41b650rand 10 1Minimum exceeds maximumRelated documentation
Current public release
v1.1.22026-08-11
First stable release
Current stable release of