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Example code of philiprehberger/php-password-strength

Informations about the package php-password-strength

PHP Password Strength

Tests Latest Version on Packagist Last updated

Password strength validation with entropy calculation and common password detection.

Requirements

Installation

Usage

Checking password strength

Quick validation

Detailed analysis

Custom dictionary

Personal context checking

Policy-based validation

API

PasswordStrength

Method Description
PasswordStrength::check(string $password): StrengthResult Analyse a password and return a result
PasswordStrength::isStrong(string $password, int $minScore = 3): bool Returns true if the score meets the minimum
PasswordStrength::analyze(string $password): StrengthReport Return a detailed strength report with analysis flags
PasswordStrength::meetsPolicy(string $password, PasswordPolicy $policy): bool Check if a password satisfies a policy
PasswordStrength::addDictionary(array $words): void Add custom dictionary words to check against
PasswordStrength::clearDictionaries(): void Clear all custom dictionaries
PasswordStrength::withContext(array $context): PendingAnalysis Create a pending analysis with personal context

StrengthResult

Property / Method Type Description
score int Strength score from 0 to 4
entropy float Shannon entropy in bits
isCommon bool Whether the password is in the common list
length int Password length in characters
suggestions array List of improvement suggestions
label(): string — Human label: very weak, weak, fair, strong, very strong
toArray(): array — Serialize to array

StrengthReport

Property Type Description
score int Strength score from 0 to 4
level string Human-readable strength level
hasLowercase bool Whether the password contains lowercase letters
hasUppercase bool Whether the password contains uppercase letters
hasDigits bool Whether the password contains digits
hasSymbols bool Whether the password contains special characters
hasRepeatedChars bool Whether the password has 3+ repeated characters in a row
hasSequentialChars bool Whether the password has 3+ sequential characters
hasKeyboardPattern bool Whether the password contains keyboard patterns
length int Password length in characters
hasPersonalContext bool Whether the password contains personal context information
suggestions array List of improvement suggestions

PendingAnalysis

Method Description
analyze(string $password): StrengthReport Analyze a password with personal context applied

PasswordPolicy

Method Description
minLength(int $length): self Set minimum password length
requireUppercase(): self Require at least one uppercase letter
requireDigits(): self Require at least one digit
requireSymbols(): self Require at least one special character
minScore(int $score): self Set minimum strength score (0-4)
check(string $password): bool Check if a password meets the policy

Score Meanings

Score Label Description
0 Very Weak Trivial or common password
1 Weak Low entropy or very short
2 Fair Moderate entropy, room to improve
3 Strong Good entropy and character variety
4 Very Strong Excellent entropy and length

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License

MIT

All versions of php-password-strength with dependencies

PHP Build Version
Package Version
Requires php Version ^8.2
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