在字符串中搜索數組中的值

Question

我有從MySQL獲取的地址，例如：

$address="This Street, Nice Area, That Country";
$address="This Street, Superb Area, Which Country";
$address="This Street, Fine Area, A Country";

現在我想做的就是找到AREA-就像$area=array("Nice", "Good") 。 因此，如果在$address找到$area定義的值，則應列出該值，否則將留空。

Answer 1

嘗試類似

$area=array(1=>"Nice", "Good");
$address = 'This Street, Nice Area, That Country';
preg_match(', (\w+) Area,', $address, $res);
$is_area = array_search( $res[1], $area, true) ;
if($is_area) echo $address;

說明

第一行將區域數組設置為以索引1而不是零開始（確保查找不返回零）

preg_match行從地址中提取區域

陣列搜索線在您的區域陣列中查找該區域

Answer 2

我認為您的要求可以解釋為：

“ 列出所有包含在$area數組中找到的字符串實例的$ address字符串。 ”

在這種情況下：

// Set up.
$address = array(
    "This Street, Nice Area, That Country",
    "This Street, Superb Area, Which Country",
    "This Street, Fine Area, A Country",
);
$area = array("Nice", "Good");

// The search.
$results = array();
foreach ($address as $haystack) {
    foreach ($area as $needle) {
        $regexPattern = "#{$needle}#";
        if (preg_match($regexPattern, $haystack)) 
            array_push($results, $haystack);
    }
}

// The results.
foreach ($results as $result) {
    echo "<p>{$result}</p>";
}