--TEST--
Test strrev() function : usage variations - single quoted strings
--FILE--
<?php
/* Prototype  : string strrev(string $str);
 * Description: Reverse a string 
 * Source code: ext/standard/string.c
*/

/* Testing strrev() function with various single quoted strings */

echo "*** Testing strrev() : with various single quoted strings ***\n";
$str = 'Hiiii';

$strings = array(
  //strings containing escape chars
  'hello\\world',
  'hello\$world',
  '\ttesting\ttesting\tstrrev',
  'testing\rstrrev testing strrev',
  'testing\fstrrev \f testing \nstrrev',
  '\ntesting\nstrrev\n testing \n strrev',
  'using\vvertical\vtab',

  //polyndrome strings
  'HelloolleH',
  'ababababababa',

  //numeric + strings  
  'Hello123',
  '123Hello',
  '123.34Hello',
  'Hello1.234',
  '123Hello1.234',

  //concatenated strings
  'Hello'.chr(0).'World',
  'Hello'.'world',
  'Hello'.$str,

  //strings containing white spaces
  '              h',
  'h              ',
  '      h        ',
  'h  e  l  l  o  ',

  //strings containing quotes
  '\hello\'world',
  'hello\"world',

  //special chars in string
  't@@#$% %test ^test &test *test +test -test',
  '!test ~test `test` =test= @test@test.com',
  '/test/r\test\strrev\t \u12ab /uu/',

  //only special chars
  '!@#$%^&*()_+=-`~'
);

$count = 1;
for( $index = 0; $index < count($strings); $index++ ) {
  echo "\n-- Iteration $count --\n";
  var_dump( strrev($strings[$index]) );
  $count ++;
}

echo "*** Done ***";
?>
--EXPECT--
*** Testing strrev() : with various single quoted strings ***

-- Iteration 1 --
unicode(11) "dlrow\olleh"

-- Iteration 2 --
unicode(12) "dlrow$\olleh"

-- Iteration 3 --
unicode(26) "verrtst\gnitsett\gnitsett\"

-- Iteration 4 --
unicode(30) "verrts gnitset verrtsr\gnitset"

-- Iteration 5 --
unicode(35) "verrtsn\ gnitset f\ verrtsf\gnitset"

-- Iteration 6 --
unicode(37) "verrts n\ gnitset n\verrtsn\gnitsetn\"

-- Iteration 7 --
unicode(20) "batv\lacitrevv\gnisu"

-- Iteration 8 --
unicode(10) "HelloolleH"

-- Iteration 9 --
unicode(13) "ababababababa"

-- Iteration 10 --
unicode(8) "321olleH"

-- Iteration 11 --
unicode(8) "olleH321"

-- Iteration 12 --
unicode(11) "olleH43.321"

-- Iteration 13 --
unicode(10) "432.1olleH"

-- Iteration 14 --
unicode(13) "432.1olleH321"

-- Iteration 15 --
unicode(11) "dlroW olleH"

-- Iteration 16 --
unicode(10) "dlrowolleH"

-- Iteration 17 --
unicode(10) "iiiiHolleH"

-- Iteration 18 --
unicode(15) "h              "

-- Iteration 19 --
unicode(15) "              h"

-- Iteration 20 --
unicode(15) "        h      "

-- Iteration 21 --
unicode(15) "  o  l  l  e  h"

-- Iteration 22 --
unicode(12) "dlrow'olleh\"

-- Iteration 23 --
unicode(12) "dlrow"\olleh"

-- Iteration 24 --
unicode(42) "tset- tset+ tset* tset& tset^ tset% %$#@@t"

-- Iteration 25 --
unicode(40) "moc.tset@tset@ =tset= `tset` tset~ tset!"

-- Iteration 26 --
unicode(33) "/uu/ ba21u\ t\verrts\tset\r/tset/"

-- Iteration 27 --
unicode(16) "~`-=+_)(*&^%$#@!"
*** Done ***