将mysql转换为mysqli

Question

我是Mysql和PHP的新手.我写了一个有效的脚本,但现在意识到我应该使用mysqli而不是mysql.我尝试将所有'mysql _...'更改为'mysqli_',但这不起作用.谁能告诉我究竟如何重写下面的代码？

 $tableName = "Fixtures";


  //==== CONNECT TO DATABASE
  $con = mysql_connect($host,$user,$pass);
  $dbs = mysql_select_db($databaseName, $con);


  //==== FETCH DATA
  $result = mysql_query("SELECT * FROM $tableName");


  //==== PUT DATA INTO ARRAY
  $array = array();
  while ($row = mysql_fetch_row($result)) {
    $array[] = $row;
  }


  //==== ECHO AS JSON
  echo json_encode($array);

Answer 1

这很简单

$db = new mysqli("host", "user", "password", "db");
$result = $db->query("SELECT * FROM $tableName");
while ($row = $result->fetch_row()) {
    //etc.
}

我发现mysqli上的php.net文档对于查找函数和代码片段非常有用.这也回答了你的问题php.net/mysqli_fetch_row