1--TEST-- 2Test strrev() function : usage variations - heredoc strings 3--FILE-- 4<?php 5/* Testing strrev() function with heredoc strings for 'str' */ 6 7echo "*** Testing strrev() function: with heredoc strings ***\n"; 8$multi_line_str = <<<EOD 9Example of string 10spanning multiple lines 11using heredoc syntax. 12EOD; 13 14$special_chars_str = <<<EOD 15Ex'ple of h'doc st'g, contains 16$#%^*&*_("_")!#@@!$#$^^&*(special) 17chars. 18EOD; 19 20$control_chars_str = <<<EOD 21Hello, World\n 22Hello\0World 23EOD; 24 25$quote_chars_str = <<<EOD 26it's bright o'side 27"things in double quote" 28'things in single quote' 29this\line is /with\slashs 30EOD; 31 32$blank_line = <<<EOD 33 34EOD; 35 36$empty_str = <<<EOD 37EOD; 38 39$strings = array( 40 $multi_line_str, 41 $special_chars_str, 42 $control_chars_str, 43 $quote_chars_str, 44 $blank_line, 45 $empty_str 46); 47 48$count = 1; 49for( $index = 0; $index < count($strings); $index++ ) { 50 echo "\n-- Iteration $count --\n"; 51 var_dump( strrev($strings[$index]) ); 52 $count ++; 53} 54 55echo "*** Done ***"; 56?> 57--EXPECTF-- 58*** Testing strrev() function: with heredoc strings *** 59 60-- Iteration 1 -- 61string(63) ".xatnys codereh gnisu 62senil elpitlum gninnaps 63gnirts fo elpmaxE" 64 65-- Iteration 2 -- 66string(72) ".srahc 67)laiceps(*&^^$#$!@@#!)"_"(_*&*^%#$ 68sniatnoc ,g'ts cod'h fo elp'xE" 69 70-- Iteration 3 -- 71string(25) "dlroW%0olleH 72 73dlroW ,olleH" 74 75-- Iteration 4 -- 76string(94) "shsals\htiw/ si enil\siht 77'etouq elgnis ni sgniht' 78"etouq elbuod ni sgniht" 79edis'o thgirb s'ti" 80 81-- Iteration 5 -- 82string(0) "" 83 84-- Iteration 6 -- 85string(0) "" 86*** Done *** 87