random_bytes to generate cryptographically secure random bytes

echo random_bytes($length);

$length : Length of the random string returned as bytes.

Generates cryptographically secure pseudo-random bytes which can be used as Salts, keys etc.

Available in PHP 7

Example

$str=random_bytes(7);
echo bin2hex($str);

Output ( Refresh this page to to see how the random number changes )


9d5e9b3f6e345d

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PHP String Functions

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random_bytes to generate cryptographically secure random bytes

Example

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