1--TEST-- 2Test variations in usage of tanh() 3--INI-- 4precision = 10 5--FILE-- 6<?php 7/* 8 * Function is implemented in ext/standard/math.c 9*/ 10 11 12//Test tanh with a different input values 13 14$values = array(23, 15 -23, 16 2.345e1, 17 -2.345e1, 18 0x17, 19 027, 20 "23", 21 "23.45", 22 "2.345e1", 23 "1000", 24 null, 25 true, 26 false); 27 28for ($i = 0; $i < count($values); $i++) { 29 $res = tanh($values[$i]); 30 var_dump($res); 31} 32 33?> 34--EXPECT-- 35float(1) 36float(-1) 37float(1) 38float(-1) 39float(1) 40float(1) 41float(1) 42float(1) 43float(1) 44float(1) 45float(0) 46float(0.7615941559557649) 47float(0) 48