遍历数组中已知数量的元素，并获取关键的PHP

我有一个网站，我正在使用php打印数组中的键和值

$array = array(
    "gfo"   => "Fondant",
    "gdo"   => "Domino",
    "ges"   => "Espir",
    "gam"   => "Amara",
    "gsa"   => "Sandwich",
    "gme"   => "Merme",
    "cza"   => "Zarza",
    "cor"   => "Oreo",
    "cal"   => "Almen",
    "cca"   => "eche",
    "cch"   => "Chocolate"
);

但我只想在菜单中显示前6个元素，如

<li>
<a href="product1.php" style="padding:8px 30px;">Product 1</a>
  <ul>                
     <?php foreach($array as $key=>$val):?>
    <li><a href="http://www.site.com.mx/products.php?id=<?=$key?>"><?=$val?></a></li>
     <?php endforeach;?>
  </ul>
</li>

然后是其他菜单中的其他5个元素

<li>
<a href="product2.php" style="padding:8px 30px;">Product 2</a>
  <ul>                
     <?php foreach($array as $key=>$val):?>
    <li><a href="http://www.site.com.mx/products.php?id=<?=$key?>"><?=$val?></a></li>
     <?php endforeach;?>
  </ul>
</li>

我知道我可以用

for ($i = 1; $i <= 6; $i++) {
    echo $i;
}

---

对于（$i=1；$i您可以使用
array\u chunk
将数组拆分为两个单独的块，然后对其中的每个块进行迭代：

$chunked = array_chunk($array, 6);

用slice（）试试

然后做你的动作，你也可以用

$first_array = array_chunk($array,6);
$second_array = array_chunk($array,6,10);

您可以使用
每个
：

$i = 1; reset($array);
// get the first 6
while ($i <= 6 && list($key, $val) = each($array)) {
        echo "$key = $val\n";
        ++$i;
}

// get the rest    
while (list($key, $val) = each($array)) {
        echo "$key = $val\n";
}

使用array_keys（）和array_values（）函数

$array = array(
    "gfo"   => "Fondant",
    "gdo"   => "Domino",
    "ges"   => "Espir",
    "gam"   => "Amara",
    "gsa"   => "Sandwich",
    "gme"   => "Merme",
    "cza"   => "Zarza",
    "cor"   => "Oreo",
    "cal"   => "Almen",
    "cca"   => "eche",
    "cch"   => "Chocolate"
);
$keys = array_keys($array);
$values = array_values($array);

for ($i = 0; $i < 6; $i++) {
    <li><a href="http://www.site.com.mx/products.php?id=<?=$keys[$i]?>"><?=$values[$i]?></a></li>
}

$array=array(
“gfo”=>“方丹”，
“gdo”=>“Domino”，
“ges”=>“Espir”，
“gam”=>“Amara”，
“gsa”=>“三明治”，
“gme”=>“Merme”，
“cza”=>“Zarza”，
“cor”=>“奥利奥”，
“cal”=>“Almen”，
“cca”=>“eche”，
“cch”=>“巧克力”
);
$keys=数组\ U键（$array）；
$values=array\u值（$array）；
对于（$i=0；$i<6；$i++）{

}

及

对于（$i=6；$i array\u slice（）是一种方法，但是我想建议，array\u slice不保留关联数组键。@Jeff仅当它们是数字的（此处没有），并且仅当您不使用标志“preserve\u keys”（5.0.2+）
$i = 1; reset($array);
// get the first 6
while ($i <= 6 && list($key, $val) = each($array)) {
        echo "$key = $val\n";
        ++$i;
}

// get the rest    
while (list($key, $val) = each($array)) {
        echo "$key = $val\n";
}

$first_six = array_slice($array, 0, 6, true);
$rest = array_slice($array, 6, null, true);

$array = array(
    "gfo"   => "Fondant",
    "gdo"   => "Domino",
    "ges"   => "Espir",
    "gam"   => "Amara",
    "gsa"   => "Sandwich",
    "gme"   => "Merme",
    "cza"   => "Zarza",
    "cor"   => "Oreo",
    "cal"   => "Almen",
    "cca"   => "eche",
    "cch"   => "Chocolate"
);
$keys = array_keys($array);
$values = array_values($array);

for ($i = 0; $i < 6; $i++) {
    <li><a href="http://www.site.com.mx/products.php?id=<?=$keys[$i]?>"><?=$values[$i]?></a></li>
}

for ($i = 6; $i <= sizeof($array); $i++) {
    <li><a href="http://www.site.com.mx/products.php?id=<?=$keys[$i]?>"><?=$values[$i]?></a></li>
}