1--TEST-- 2Test bin2hex() function : basic functionality 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() : basic functionality ***\n"; 12 13// array with different values for $string 14$strings = array ( 15 16 //double quoted strings 17/*1*/ "Here is a simple string", 18 "\t This String contains \t\t some control characters\r\n", 19 "\x90\x91\x00\x93\x94\x90\x91\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f", 20 21 //single quoted strings 22/*4*/ 'Here is a simple string', 23 '\t This String contains \t\t some control characters\r\n', 24 '\x90\x91\x00\x93\x94\x90\x91\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f', 25); 26 27// loop through with each element of the $strings array to test bin2hex() function 28$count = 1; 29foreach($strings as $string) { 30 echo "-- Iteration $count --\n"; 31 var_dump(bin2hex($string)); 32 $count ++; 33} 34?> 35===DONE=== 36--EXPECT-- 37*** Testing bin2hex() : basic functionality *** 38-- Iteration 1 -- 39string(46) "4865726520697320612073696d706c6520737472696e67" 40-- Iteration 2 -- 41string(102) "09205468697320537472696e6720636f6e7461696e7320090920736f6d6520636f6e74726f6c20636861726163746572730d0a" 42-- Iteration 3 -- 43string(36) "9091009394909195969798999a9b9c9d9e9f" 44-- Iteration 4 -- 45string(46) "4865726520697320612073696d706c6520737472696e67" 46-- Iteration 5 -- 47string(112) "5c74205468697320537472696e6720636f6e7461696e73205c745c7420736f6d6520636f6e74726f6c20636861726163746572735c725c6e" 48-- Iteration 6 -- 49string(144) "5c7839305c7839315c7830305c7839335c7839345c7839305c7839315c7839355c7839365c7839375c7839385c7839395c7839615c7839625c7839635c7839645c7839655c783966" 50===DONE=== 51