PHP数组的用法

PHP数组的用法

<? php
  $paper [] = "Copier" ;
  $paper [] = "Inkjet" ;
  $paper [0] = "Copier" ;
  $paper [1] = "Inkjet" ;
  print_r ( $paper  );
  for  ( $j  = 0 ;  $j  < 4 ; ++ $j  )
      echo  " $j :  $paper [ $j ]<br>" ;

  $paper ['copier'] = "Copier & Multipurpose" ;
  $paper ['inkjet'] = "Inkjet Printer" ;
  $paper ['laser']  = "Laser Printer" ;
  $paper ['photo']  = "Photographic Paper" ;
  echo   $paper ['laser' ];

  $p1  =  array ("Copier", "Inkjet", "Laser", "Photo" );
  echo  "p1 element: " .  $p1 [2] . "<br>" ;
  $p2  =  array ('copier' => "Copier & Multipurpose",
            'inkjet' => "Inkjet Printer",
            'laser'  => "Laser Printer",
            'photo'  => "Photographic Paper" );
  echo  "p2 element: " .  $p2 ['inkjet'] . "<br>" ;
  foreach  ( $paper   as   $item  =>  $description  )
      echo  " $item :  $description <br>" ;
  while  ( list ( $item ,  $description ) =  each ( $paper  ))
      echo  " $item :  $description <br>" ;
  echo  "<pre>" ;
  foreach  ( $products   as   $section  =>  $items  )
      foreach  ( $items   as   $key  =>  $value  )
          echo  " $section :\t $key \t( $value )<br>" ;
  echo  "</pre>" ;

  $paper  =  array ("Copier", "Inkjet", "Laser", "Photo" );
  $j  = 0 ;
  foreach  ( $paper   as   $item  )
{
      echo  " $j :  $item <br>" ;
     ++ $j  ;
}

  $temp  =  explode (' ', "This is a sentence with seven words" );
  $temp  =  explode ('***', "A***sentence***with***asterisks" );
  print_r ( $temp  );

  $fname    = "Elizabeth" ;
  $sname    = "Windsor" ;
  $address  = "Buckingham Palace" ;
  $city     = "London" ;
  $country  = "United Kingdom" ;
  $contact  =  compact ('fname', 'sname', 'address', 'city', 'country' );
  print_r ( $contact  );

  $j        = 23 ;
  $temp     = "Hello" ;
  $address  = "1 Old Street" ;
  $age      = 61 ;
  print_r ( compact ( explode (' ', 'j temp address age' )));

 ?>

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