我有一个这样的数组
Array
(
[33] =>
[53] =>
[82] =>
[36] =>
[47] =>
[42] =>
[1] =>
[12] =>
[86] =>
[68] =>
[31] => 1.00
[2] => 1.00
[87] => 2.00
[50] => 3.00
[10] => 3.00
[55] => 3.00
[48] => 3.00
[70] => 3.00
[90] => 3.00
[37] => 3.00
[69] => 3.00
[8] => 3.00
[49] => 3.00
[26] => 3.00
[13] => 3.00
[61] => 3.00
[59] => 3.00
[73] => 4.00
[64] => 4.00
[77] => 4.00
[78] => 4.00
[65] => 4.00
[66] => 4.00
[63] => 4.00
[76] => 4.00
[51] => 4.00
[52] => 4.00
[43] => 4.00
[58] => 4.00
[60] => 4.00
[74] => 4.00
[67] => 4.00
[35] => 4.00
[17] => 4.00
[16] => 4.00
[18] => 4.00
[20] => 4.00
[41] => 4.00
[15] => 4.00
[11] => 4.00
[4] => 4.00
[5] => 4.00
[6] => 4.00
[7] => 4.00
[83] => 4.00
[22] => 4.00
[34] => 4.00
[38] => 4.00
[40] => 4.00
[25] => 4.00
[32] => 4.00
[80] => 4.00
[81] => 4.00
[27] => 4.00
[30] => 4.00
[79] => 5.00
[89] => 5.00
[88] => 5.00
[72] => 5.00
[71] => 5.00
[44] => 5.00
[21] => 5.00
[23] => 5.00
[24] => 5.00
[19] => 5.00
[14] => 5.00
[3] => 5.00
[9] => 5.00
[28] => 5.00
[29] => 5.00
[56] => 5.00
[57] => 5.00
[54] => 5.00
[46] => 5.00
[39] => 5.00
[45] => 5.00
[62] => 5.00
)
现在我想找到特定索引的位置，即如果我搜索53那么它返回其位置，即 2 .因为我正在考虑53 SECOND位置。
使用 array_keys(( 获取密钥，然后尝试 array_search(( 获取它的索引。
$keys = array_keys($yourArray);
$key = array_search('53', $keys);
没有测试它，但应该可以工作。
您可以使用
$a = array_keys($array)
获取其值为$array =>键的数组
之后您可以使用
$a = array_flip($a);
使数组值成为数组的索引(根据需要放置！
然后
$a["53"];//for example will get what you want
希望对您有所帮助
注意：如果您经常访问$a请使用我的方式，因为它构建了数组，之后您将有 O(1( 访问时间，如果您需要它进行一两次访问，最好使用 array_search 从带有 O(n( 的array_keys数组中获取索引。
function findIndex($arr, $needle) {
$i = 0;
foreach ($arr as $key => $value) {
if ($key === $needle) {
return $i;
}
$i++;
}
return false;
}
通过 array_keys(( 函数获取所有数组键，然后提取所需的键值。见 http://www.php.net/manual/en/function.array-keys.php