1--TEST-- 2Test bin2hex() function : usage variations - test values for $str argument 3--FILE-- 4<?php 5 6/* Prototype : string bin2hex ( string $str ) 7 * Description: Convert binary data into hexadecimal representation 8 * Source code: ext/standard/string.c 9*/ 10 11echo "*** Testing bin2hex() function: with unexpected inputs for 'str' argument ***\n"; 12 13//get an unset variable 14$unset_var = 'string_val'; 15unset($unset_var); 16 17//defining a class 18class sample { 19 public function __toString() { 20 return "sample object"; 21 } 22} 23 24//getting the resource 25$file_handle = fopen(__FILE__, "r"); 26 27// array with different values for $input 28$inputs = array ( 29 30 // integer values 31/*1*/ 0, 32 1, 33 123456, 34 35 // float values 36/*4*/ 10.5, 37 -20.5, 38 10.1234567e10, 39 40 // array values 41/*7*/ array(), 42 array(0), 43 array(1, 2), 44 45 // boolean values 46/*10*/true, 47 false, 48 TRUE, 49 FALSE, 50 51 // null values 52/*14*/NULL, 53 null, 54 55 // objects 56/*16*/new sample(), 57 58 // resource 59/*17*/$file_handle, 60 61 // undefined variable 62/*18*/@$undefined_var, 63 64 // unset variable 65/*19*/@$unset_var 66); 67 68// loop through with each element of the $inputs array to test bin2hex() function 69$count = 1; 70foreach($inputs as $input) { 71 echo "-- Iteration $count --\n"; 72 var_dump(bin2hex($input) ); 73 $count ++; 74} 75 76fclose($file_handle); //closing the file handle 77 78?> 79===DONE=== 80--EXPECTF-- 81*** Testing bin2hex() function: with unexpected inputs for 'str' argument *** 82-- Iteration 1 -- 83string(2) "30" 84-- Iteration 2 -- 85string(2) "31" 86-- Iteration 3 -- 87string(12) "313233343536" 88-- Iteration 4 -- 89string(8) "31302e35" 90-- Iteration 5 -- 91string(10) "2d32302e35" 92-- Iteration 6 -- 93string(24) "313031323334353637303030" 94-- Iteration 7 -- 95 96Warning: bin2hex() expects parameter 1 to be string, array given in %s on line %d 97NULL 98-- Iteration 8 -- 99 100Warning: bin2hex() expects parameter 1 to be string, array given in %s on line %d 101NULL 102-- Iteration 9 -- 103 104Warning: bin2hex() expects parameter 1 to be string, array given in %s on line %d 105NULL 106-- Iteration 10 -- 107string(2) "31" 108-- Iteration 11 -- 109string(0) "" 110-- Iteration 12 -- 111string(2) "31" 112-- Iteration 13 -- 113string(0) "" 114-- Iteration 14 -- 115string(0) "" 116-- Iteration 15 -- 117string(0) "" 118-- Iteration 16 -- 119string(26) "73616d706c65206f626a656374" 120-- Iteration 17 -- 121 122Warning: bin2hex() expects parameter 1 to be string, resource given in %s on line %d 123NULL 124-- Iteration 18 -- 125string(0) "" 126-- Iteration 19 -- 127string(0) "" 128===DONE===