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php 数组查询

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Release: 2016-06-08 17:29:06
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php 数组查询
  * 查询数组,如果有多个结果返回key数组
  * @param array $array 操作的数组
  * @param mixed $value 要查询的值
  * @return mixed
  */
 public static function search(&$array, $value, $field = NULL, $once = false) {
  $index = array();
  foreach ($array as $key => $arrayValue) {
   if ($field) {
    if ($arrayValue[$field]==$value) {
     $index[] = $key;
     if ($once) {
      break;
     }
    }
   } else {
    if ($value==$arrayValue) {
     $index[] = $key;
     if ($once) {
      break;
     }
    }
   }
  }
  $indexCount = count($index);
  if ($indexCount    return -1;
  } elseif ($indexCount==1) {
   return $index[0];
  } else {
   return $index;
  }
 }

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