瑕佸疄鐜板缁存帓搴忥紝鍙互浣跨敤PHP涓殑usort()鍑芥暟缁撳悎鑷畾涔夌殑姣旇緝鍑芥暟鏉ュ疄鐜般€傛瘮杈冨嚱鏁板彲浠ユ瘮杈冩暟缁勪腑鐨勫涓淮搴︼紝鐒跺悗鏍规嵁姣旇緝缁撴灉瀵规暟缁勮繘琛屾帓搴忋€?/p>

浠ヤ笅鏄竴涓ず渚嬩唬鐮侊紝婕旂ず濡備綍瀹炵幇澶氱淮鎺掑簭锛?/p>

// 瀹氫箟涓€涓缁存暟缁?/span>
$students = array(
    array('name' => 'Alice', 'age' => 20, 'score' => 85),
    array('name' => 'Bob', 'age' => 22, 'score' => 90),
    array('name' => 'Chris', 'age' => 21, 'score' => 80)
);

// 鑷畾涔夋瘮杈冨嚱鏁?/span>
function cmp($a, $b) {
    if ($a['score'] == $b['score']) {
        return 0;
    }
    return ($a['score'] < $b['score']) ? -1 : 1;
}

// 浣跨敤usort()鍑芥暟瀵规暟缁勮繘琛屾帓搴?/span>
usort($students, 'cmp');

// 鎵撳嵃鎺掑簭鍚庣殑鏁扮粍
print_r($students);

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