1--TEST-- 2Test exif_tagname() function : usage variations - different types for index argument 3--SKIPIF-- 4<?php if (!extension_loaded('exif')) print 'skip exif extension not available';?> 5--FILE-- 6<?php 7 8/* Prototype : string exif_tagname ( string $index ) 9 * Description: Get the header name for an index 10 * Source code: ext/exif/exif.c 11*/ 12 13echo "*** Testing exif_tagname() : different types for index argument ***\n"; 14// initialize all required variables 15 16// get an unset variable 17$unset_var = 'string_val'; 18unset($unset_var); 19 20// declaring a class 21class sample { 22 public function __toString() { 23 return "obj'ct"; 24 } 25} 26 27// Defining resource 28$file_handle = fopen(__FILE__, 'r'); 29 30// array with different values 31$values = array ( 32 33 // integer values 34 0, 35 1, 36 12345, 37 -2345, 38 39 // float values 40 10.5, 41 -10.5, 42 10.1234567e10, 43 10.7654321E-10, 44 .5, 45 46 // array values 47 array(), 48 array(0), 49 array(1), 50 array(1, 2), 51 array('color' => 'red', 'item' => 'pen'), 52 53 // boolean values 54 true, 55 false, 56 TRUE, 57 FALSE, 58 59 // empty string 60 "", 61 '', 62 63 // undefined variable 64 $undefined_var, 65 66 // unset variable 67 $unset_var, 68 69 // objects 70 new sample(), 71 72 // resource 73 $file_handle, 74 75 NULL, 76 null 77); 78 79 80// loop through each element of the array and check the working of exif_tagname() 81// when $index argument is supplied with different values 82 83echo "\n--- Testing exif_tagname() by supplying different values for 'index' argument ---\n"; 84$counter = 1; 85foreach($values as $index) { 86 echo "-- Iteration $counter --\n"; 87 var_dump( exif_tagname($index) ); 88 $counter ++; 89} 90 91// closing the file 92fclose($file_handle); 93 94echo "Done\n"; 95?> 96 97?> 98===Done=== 99--EXPECTF-- 100*** Testing exif_tagname() : different types for index argument *** 101 102Notice: Undefined variable: undefined_var in %s on line %d 103 104Notice: Undefined variable: unset_var in %s on line %d 105 106--- Testing exif_tagname() by supplying different values for 'index' argument --- 107-- Iteration 1 -- 108bool(false) 109-- Iteration 2 -- 110bool(false) 111-- Iteration 3 -- 112bool(false) 113-- Iteration 4 -- 114bool(false) 115-- Iteration 5 -- 116bool(false) 117-- Iteration 6 -- 118bool(false) 119-- Iteration 7 -- 120bool(false) 121-- Iteration 8 -- 122bool(false) 123-- Iteration 9 -- 124bool(false) 125-- Iteration 10 -- 126 127Warning: exif_tagname() expects parameter 1 to be long, array given in %s on line %d 128NULL 129-- Iteration 11 -- 130 131Warning: exif_tagname() expects parameter 1 to be long, array given in %s on line %d 132NULL 133-- Iteration 12 -- 134 135Warning: exif_tagname() expects parameter 1 to be long, array given in %s on line %d 136NULL 137-- Iteration 13 -- 138 139Warning: exif_tagname() expects parameter 1 to be long, array given in %s on line %d 140NULL 141-- Iteration 14 -- 142 143Warning: exif_tagname() expects parameter 1 to be long, array given in %s on line %d 144NULL 145-- Iteration 15 -- 146bool(false) 147-- Iteration 16 -- 148bool(false) 149-- Iteration 17 -- 150bool(false) 151-- Iteration 18 -- 152bool(false) 153-- Iteration 19 -- 154 155Warning: exif_tagname() expects parameter 1 to be long, string given in %s on line %d 156NULL 157-- Iteration 20 -- 158 159Warning: exif_tagname() expects parameter 1 to be long, string given in %s on line %d 160NULL 161-- Iteration 21 -- 162bool(false) 163-- Iteration 22 -- 164bool(false) 165-- Iteration 23 -- 166 167Warning: exif_tagname() expects parameter 1 to be long, object given in %s on line %d 168NULL 169-- Iteration 24 -- 170 171Warning: exif_tagname() expects parameter 1 to be long, resource given in %s on line %d 172NULL 173-- Iteration 25 -- 174bool(false) 175-- Iteration 26 -- 176bool(false) 177Done 178 179?> 180===Done=== 181 182