将 PostgreSQL 数组转换为 PHP 数组 [英] Convert PostgreSQL array to PHP array

问题描述

我在 PHP 中读取 Postgresql 数组时遇到问题.我尝试过explode()，但这会破坏字符串中包含逗号的数组，并且str_getcsv() 但这也不好，因为PostgreSQL 没有引用日语字符串.

I have trouble reading Postgresql arrays in PHP. I have tried explode(), but this breaks arrays containing commas in strings, and str_getcsv() but it's also no good as PostgreSQL doesn't quote the Japanese strings.

不工作:

explode(',', trim($pgArray['key'], '{}'));
str_getcsv( trim($pgArray['key'], '{}') );

示例:

// print_r() on PostgreSQL returned data: Array ( [strings] => {または, "some string without a comma", "a string, with a comma"} )

// Output: Array ( [0] => または [1] => "some string without a comma" [2] => "a string [3] => with a comma" ) 
explode(',', trim($pgArray['strings'], '{}'));

// Output: Array ( [0] => [1] => some string without a comma [2] => a string, with a comma ) 
print_r(str_getcsv( trim($pgArray['strings'], '{}') ));

推荐答案

如果你有 PostgreSQL 9.2 你可以这样做:

If you have PostgreSQL 9.2 you can do something like this:

SELECT array_to_json(pg_array_result) AS new_name FROM tbl1;

结果将以 JSON 形式返回数组

The result will return the array as JSON

然后是php方面的问题:

Then on the php side issue:

$array = json_decode($returned_field);

您也可以转换回来.这是JSON 函数页面

You can also convert back. Here are the JSON functions page

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