(PHP 4 >= 4.2.0, PHP 5, PHP 7) Returns the floating point remainder (modulo) of the division of the arguments
(PHP 4, PHP 5, PHP 7) Seed the random number generator
(PHP 4 >= 4.1.0, PHP 5, PHP 7) Inverse hyperbolic sine
(PHP 4, PHP 5, PHP 7) Natural logarithm float
(PHP 4, PHP 5, PHP 7) Round fractions down mixed
(PHP 4, PHP 5, PHP 7) Hexadecimal to decimal
(PHP 4, PHP 5, PHP 7) Convert a number between arbitrary bases
(PHP 4, PHP 5, PHP 7) Arc tangent of two variables
(PHP 4 >= 4.1.0, PHP 5, PHP 7) Returns log(1 + number), computed in a way that is accurate even when the
(PHP 4, PHP 5, PHP 7) Generate a random integer
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