PHP Password Hashing

Online PHP password hashing tool, securely encrypts passwords using password_hash.

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生成结果

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Tags

PHP Hashing Password Encryption

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Tool Introduction

This tool is an online PHP password hash generator, designed for PHP developers and system administrators. It utilizes PHP's built-inpassword_hash() function to securely perform one-way hashing on your plain text password or any string you enter. This feature aims to provide a reliable password storage solution, effectively preventing security risks such as rainbow table attacks and plain text password leaks. You simply need to enter the string to be processed into the “Before Hashing” input box to quickly obtain a hash value that meets PHP security standards.

How to Use

In the input box named “Before Hashing” (parameter name: content), enter the plain text password or string you wish to hash. This input box is required.
Click the “Generate Hash” or similar button on the page (depending on the tool interface).
The tool will display the generated PHP password hash value in the result area (a text area).

Frequently Asked Questions

Q: What input formats are supported?
A: This tool supports any text string as input, with no specific length or character set restrictions. It is recommended to enter strings within common character sets to avoid encoding issues.
Q: What is the format of the output?
A: The output is a standard string generated by PHP's password_hash() function. It is a one-way hash value, irreversible, typically 60 characters long (BCrypt algorithm), and includes the algorithm type, cost factor, and a randomly generated salt.
Q: Is this hash value reversible?
A: No, password hashing algorithms are one-way, meaning the original password cannot be directly derived from the hash value. This is a core feature designed for security.
Q: Is the hash value generated the same every time?
A: No, even if the same password is entered, the hash value generated will be different each time. This is because thepassword_hash() function by default generates a unique random salt for each password to effectively defend against rainbow table attacks.
Q: What does the “cost factor” of hashing mean?
A: The cost factor determines the time spent on hash calculation. A higher cost factor means stronger security but also requires more computational resources. PHP's password_hash() function defaults to using 10 as the cost factor.

Important Notes

Data Input: The “Before Hashing” input box is required. Please ensure you have entered the string to be processed. To avoid potential encoding or parsing issues, it is recommended to enter text within common character sets (e.g., UTF-8).
Secure Storage: The hash values generated by this tool are for testing and demonstration purposes only. In actual production environments, always generate and verify password hashes on the server side, and never store or display plain text passwords on the client side or anywhere else.
Hash Verification: To verify if a user-entered password matches a stored hash value, you should use PHP'spassword_verify() function, rather than directly comparing hash values.
Algorithm Selection: Thepassword_hash() function defaults to using the currently best algorithm (usually BCrypt). Please avoid using insecure older hashing algorithms like MD5, SHA1, etc., to store passwords.