php -src/ext/standard/rand.c ... This source file is subject to version 3.01 of the PHP license, | ... https://www.php.net/license/3_01.txt |. ... <看更多>

To answer this question specifically, two problems: $randstring is not in scope when you echo it. The characters are not getting concatenated together in ... ... <看更多>

Statistical Analysis · This page describes the statistical analyses that have been conducted of the true random number service RANDOM.ORG · More like this. ... <看更多>

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