技术问答php鎬庝箞璇诲彇鏁扮粍鍏冪礌 - 扬州沐宇科技

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沐宇首页互联网技术知识问答 php鎬庝箞璇诲彇鏁扮粍鍏冪礌

扬州沐宇科技

2024-02-21 10:40:20

PHP

瑕佽鍙栨暟缁勫厓绱狅紝鍙互浣跨敤鏁扮粍鐨勯敭鍊兼潵鑾峰彇瀵瑰簲鐨勫€笺€備緥濡傦紝濡傛灉鏈変竴涓悕涓?$arr 鐨勬暟缁勶紝鍙互閫氳繃 $arr['key'] 鐨勬柟寮忔潵璇诲彇閿负鈥榢ey鈥?鐨勫厓绱犵殑鍊笺€備互涓嬫槸涓€涓ず渚嬩唬鐮侊細

$arr = array('name' => 'John', 'age' => 30);

echo $arr['name']; // 杈撳嚭 'John'
echo $arr['age']; // 杈撳嚭 30

闄や簡浣跨敤閿€兼潵璇诲彇鏁扮粍鍏冪礌澶栵紝杩樺彲浠ヤ娇鐢ㄥ惊鐜潵閬嶅巻鏁扮粍涓殑鎵€鏈夊厓绱犮€備緥濡傦紝鍙互浣跨敤 foreach 寰幆鏉ラ亶鍘嗗叧鑱旀暟缁勭殑鎵€鏈夊厓绱狅細

$arr = array('name' => 'John', 'age' => 30);

foreach ($arr as $key => $value) {
    echo $key . ': ' . $value . '<br>';
}

涓婅堪浠ｇ爜灏嗚緭鍑猴細

name: John
age: 30