Note that log of a negative or undefined number returns -Infinity.
log10
(PHP 4, PHP 5, PHP 7, PHP 8)
log10 — 以 10 为底的对数
参数
-
num -
要处理的参数
返回值
num 以 10 为底的对数。
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smalladi at lexgen dot com ¶
23 years ago
