Question

我有一个产品主表和包含产品属性的各种其他表，查询：

select p.description, category.value, colour.value, wood.value, brand.value, type.value, fabric.value, model.value from product_master p, category, colour, wood, brand, type, fabric, model where p.category_code=category.category_code and p.colour_code = colour.colour_code and p.wood_code = wood.wood_code and p.brand_code = brand.brand_code and p.type_code = type.type_code and p.fabric_code = fabric.fabric_code and p.model_code = model.model_code

在pgAdmin中正常工作但在php中它只提供了2列，我通过AJAX获得结果

我的PHP代码是

<?php
// Connecting, selecting database
$dbconn = pg_connect("host=***** dbname=*** user=*** password=***")
    or die('Could not connect: ' . pg_last_error());

// Performing SQL query
$query = ' select p.description, category.value, colour.value, wood.value, brand.value, type.value, fabric.value, model.value from product_master p, category, colour, wood, brand, type, fabric, model where p.category_code=category.category_code and p.colour_code = colour.colour_code and p.wood_code = wood.wood_code and p.brand_code = brand.brand_code and p.type_code = type.type_code and p.fabric_code = fabric.fabric_code and p.model_code = model.model_code ';
$result = pg_query($query) or die('Query failed: ' . pg_last_error());



echo pg_affected_rows($result) ;

echo "\n";

echo pg_num_fields($result);


// Printing results in HTML
echo "<table>\n";
while ($line = pg_fetch_array($result, null, PGSQL_ASSOC)) {
    echo "\t<tr>\n";
    foreach ($line as $col_value) {
        echo "\t\t<td>$col_value</td>\n";
    }
    echo "\t</tr>\n";
}
echo "</table>\n";

// Free resultset
pg_free_result($result);

// Closing connection
pg_close($dbconn);
?>

Answer 1

您错误地使用了pg_fetch_array()。您不能将第二个参数作为NULL传递，因为它指示正在读取哪一行。

试试这个：

while ($line = pg_fetch_array($result)) {
    echo "\t<tr>\n";

    foreach ($line as $col_value) 
        echo "\t\t<td>$col_value</td>\n";

    echo "\t</tr>\n";
}

postgres php不给结果集中的每一列

1 个答案: