显示10个阵列卡[关闭]

http://plnkr.co/edit/06lu6r34eGNfRq1fygNy

I want to only display 10 "cards" from my array, how would I do so? I tried using unset() but it is very inefficient and doesn't even work for multiple cards. Also how can I make the code display the "cards" horizontally instead of vertically?

If you’d like to use unset, the correct syntax would be unset($cards[1]); unset($cards[2]); unset($cards[3]); ... and so on.

However, for your particular situation, I’ll recommend you to use array_slice:

$cards = array(
    "Messi",           "Ronaldo",         "Ibrahimovic",     "Ribery",          "Robben",          "Neymar",          "Rooney",          "Casillas",
    "Falcao",          "Van Persie",      "Hazard",          "Iniesta",         "Xavi",            "Schweinsteiger",  "Silva",           "Fabregas",
    "Lahm",            "Aguero",          "Cavani",          "Vidic",           "Ozil",            "Mata",            "Bale",            "ThiagoSilva",
    "Kompany",         "Tevez",           "Toure",           "Ramos",           "Suarez",          "Pirlo",           "DiMaria",         "Neuer",
    "Pique",           "Buffon",          "Lewandowski",     "Gomez",           "Chiellini",       "Cole",            "Pedro",           "Busquets",
    "Cech",            "Muller",          "Hummels",         "Alonso",          "Navas",           "Modric",          "Cazorla",         "Gotze",
    "Benzema",         "Vidal",           "Lavezzi"
);
shuffle($cards);
$cards = array_slice($cards, 0, 10);

For the horizontal display, you may simply omit the <br> at the end of every iteration of your loop, but, depending on the resolution of the user’s browser, the images may occupy more than one line. For a strictly horizontal arrangement, use an HTML table with 10 columns:

print("<table><tr>");
foreach($cards as $card){
$img = "http://d2bm3ljpacyxu8.cloudfront.net/fit/105x97/http://clearpkz.webs.com/webstore/".$card.".png";
print("<td><img src=\"".$img."\"/></td>");
}
print("</tr></table>");

The following works too:

for ($i = 0; $i < 10; $i++) {
  echo $cards[$i] ." <br>"; // put the name above the card
  echo "<img src='http://d2bm3ljpacyxu8.cloudfront.net/fit/105x97/http://clearpkz.webs.com/webstore/$card.png'> <br>";

  }

If you want them horizontally, and without names, don't put in the <br>:

for ($i = 0; $i < 10; $i++) {
  echo "<img src='http://d2bm3ljpacyxu8.cloudfront.net/fit/105x97/http://clearpkz.webs.com/webstore/$card.png'>";
}