使用數組鍵和值來創建sql select語句

Question

我想傳遞一個包含鍵和值的數組。

鍵是列和值是要選擇的值。

我想寫一個函數，我可以傳遞一個數組，並使用鍵和值作爲表的列和值。例如：

$array = array("user"=>"joe", user_id="2"); 

我需要的sql語句中像這樣創建：

select * from table where $key = $value; 

Answer 1

您可以構建一個簡單的SQL選擇像這樣：

<?php 


/** 
* @param array Column => Value pairs 
* @return string 
*/ 
function create_sql_select(array $pair){ 
    $condition = array(); 

    foreach ($pair as $key => $value){ 
    $condition[] = "{$key} = '{$value}'"; 
    } 

// Separate by AND delimiter if there are more than 1 pair 
$condition = join(' AND ', $condition); 

// Return prepared string: 
return "SELECT * FROM your_table WHERE {$condition}"; 
} 

//Will print: SELECT * FROM your_table WHERE user = 'some' AND age = '10' 
print create_sql_select(array('user' => 'some', 'age' => 10)); 

Answer 2

使用foreach循環來遍歷數組了，並得到鍵和值。就像這樣：

$sql=''; 
foreach($array as $key=>$value){ 
    $sql = sprintf("select * from table where %s = %s",$key,$value); 
    print $sql; 
}