1--TEST-- 2Math constants 3--INI-- 4precision=14 5--FILE-- 6<?php 7$constants = array( 8 "M_E", 9 "M_LOG2E", 10 "M_LOG10E", 11 "M_LN2", 12 "M_LN10", 13 "M_PI", 14 "M_PI_2", 15 "M_PI_4", 16 "M_1_PI", 17 "M_2_PI", 18 "M_SQRTPI", 19 "M_2_SQRTPI", 20 "M_LNPI", 21 "M_EULER", 22 "M_SQRT2", 23 "M_SQRT1_2", 24 "M_SQRT3" 25); 26foreach($constants as $constant) { 27 printf("%-10s: %s\n", $constant, constant($constant)); 28} 29?> 30--EXPECTREGEX-- 31M_E : 2.718281[0-9]* 32M_LOG2E : 1.442695[0-9]* 33M_LOG10E : 0.434294[0-9]* 34M_LN2 : 0.693147[0-9]* 35M_LN10 : 2.302585[0-9]* 36M_PI : 3.141592[0-9]* 37M_PI_2 : 1.570796[0-9]* 38M_PI_4 : 0.785398[0-9]* 39M_1_PI : 0.318309[0-9]* 40M_2_PI : 0.636619[0-9]* 41M_SQRTPI : 1.772453[0-9]* 42M_2_SQRTPI: 1.128379[0-9]* 43M_LNPI : 1.144729[0-9]* 44M_EULER : 0.577215[0-9]* 45M_SQRT2 : 1.414213[0-9]* 46M_SQRT1_2 : 0.707106[0-9]* 47M_SQRT3 : 1.732050[0-9]* 48 49