尝试让 PDO 执行工作时出错

Question

这有效，我将 print_r 上回显的代码粘贴到执行语句中，一切正常。

$search_items = array();
for ($x = 0; $x < $search_parts_count; $x++) {
     $search_items[] = "':search$x' => '%$search_parts[$x]%'";
}
print_r(implode(",", $search_items));

$stmt->execute(array(':search0' => '%cure%',':search1' => '%cancer%',':search2' => '%help%',':search3' => '%ongoing%'));

但是当我这样做时：

$stmt->execute($search_items);

我得到：

Uncaught exception 'PDOException' with message 'SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens'

不知道我做错了什么。任何帮助将不胜感激！

声明如下：

$sql_string = 'SELECT area, file_name, title FROM meta_details WHERE' . $search_guts;
    $stmt = $conn->prepare($sql_string);

它是这样建造的：

$search_guts = '(';

    for ($x = 0; $x < $search_parts_count; $x++) {
        $search_guts .= 'title LIKE :search' . $x;
         if ($search_parts_count - 1 != $x){$search_guts .= ' OR ';}
        };

    $search_guts .= ') OR (';   

    for ($x = 0; $x < $search_parts_count; $x++) {
        $search_guts .= 'description LIKE :search' . $x;
         if ($search_parts_count - 1 != $x){$search_guts .= ' OR ';}
        };          
        $search_guts .= ')';

谢谢！

Answer 1

构建时$search_items...

$search_items[] = "':search$x' => '%$search_parts[$x]%'";

您正在创建一个值为 "':search$x' => '%$search_parts[$x]%'" 的项目，而不是 :search$x 的条目。您应该设置为...

$search_items[":search$x"] = "%{$search_parts[$x]}%";

尝试让 PDO 执行工作时出错

Error when trying to get PDO execute to work

php

sql

binding

pdo

execute