1--TEST-- 2Test vsprintf() function : usage variations - scientific formats with scientific values 3--FILE-- 4<?php 5/* Prototype : string vsprintf(string format, array args) 6 * Description: Return a formatted string 7 * Source code: ext/standard/formatted_print.c 8*/ 9 10/* 11 * Test vsprintf() when different scientific formats and scientific values 12 * are passed to the '$format' and '$args' arguments of the function 13*/ 14 15echo "*** Testing vsprintf() : scientific formats and scientific values ***\n"; 16 17// defining array of scientific formats 18$formats = array( 19 '%e %+e %-e', 20 '%le %Le %4e %-4e', 21 '%10.4e %-10.4e %.4e', 22 '%\'#20e %\'20e %\'$20e %\'_20e', 23 '%3$e %4$e %1$e %2$e' 24); 25 26// Arrays of scientific values for the format defined in $format. 27// Each sub array contains scientific values which correspond to each format string in $format 28$args_array = array( 29 array(0, 1e0, "10e2" ), 30 array(2.2e2, 10e10, 1000e-2, 1000e7), 31 array(-22e12, 10e20, 1.2e2), 32 array(1e1, +1e2, -1e3, "1e2_"), 33 array(3e3, 4e3, 1e3, 2e3) 34); 35 36// looping to test vsprintf() with different scientific formats from the above $format array 37// and with signed and other types of values from the above $args_array array 38$counter = 1; 39foreach($formats as $format) { 40 echo "\n-- Iteration $counter --\n"; 41 var_dump( vsprintf($format, $args_array[$counter-1]) ); 42 $counter++; 43} 44 45echo "Done"; 46?> 47--EXPECTF-- 48*** Testing vsprintf() : scientific formats and scientific values *** 49 50-- Iteration 1 -- 51string(36) "0.000000e+0 +1.000000e+0 1.000000e+3" 52 53-- Iteration 2 -- 54string(38) "2.200000e+2 e 1.000000e+1 1.000000e+10" 55 56-- Iteration 3 -- 57string(32) "-2.2000e+13 1.0000e+21 1.2000e+2" 58 59-- Iteration 4 -- 60string(74) "#########1.000000e+1 1.000000e+2 $$$$$$$$-1.000000e+3 _________1.000000e+2" 61 62-- Iteration 5 -- 63string(47) "1.000000e+3 2.000000e+3 3.000000e+3 4.000000e+3" 64Done 65