json_decode只返回集合的第一个成员

Question

我在一个关联数组中存储了一些JSON字符串。我可以很好地访问这些字符串，但是json_decode只是提取每个集合的最后一个成员，而完全忽略了最后一个集合。我做错了什么？谢谢。

这段代码

foreach ($arr_data as $row) {
    echo $row['tags'];
    print_r (json_decode($row['tags'], TRUE));      
}

输出本

{"bun_tag": "punctuation"},{"bun_tag": "quotation marks"},{"bun_tag": "document heading"},{"bun_tag": "document structure"}{"bun_tag": "multiple inversion"},{"bun_tag": "overloaded compound"},{"bun_tag": "syntactic ambiguity"},{"bun_tag": "excessive syntactic distance"}{"bun_tag": "omission"},{"bun_tag": "referential distortion"}{"bun_tag": "tense"},{"bun_tag": "modality"},{"bun_tag": "nominalisation"},{"bun_tag": "directive infinitive"}{"bun_tag": "good"}

Array
(
    [bun_tag] => good
)

{"bun_tag": "garden path"},{"bun_tag": "overloaded compound"}{"bun_tag": "missing determiner"},{"bun_tag": "referential ambiguity"}{"bun_tag": "garden path"}

Array
(
    [bun_tag] => garden path
)

{"bun_tag": "overloaded compound"}

Array
(
    [bun_tag] => overloaded compound
)

{"bun_tag": "capitalisation"},{"bun_tag": "title of document section"}{"bun_tag": "syntactic ambiguity"},{"bun_tag": "excessive syntactic distance"}{"bun_tag": "selectional restriction"}

Array
(
    [bun_tag] => selectional restriction
)

{"bun_tag": "garden path"},{"bun_tag": "overloaded compound"},{"bun_tag": "syntactic ambiguity"}{"bun_tag": "relational ambiguity"},{"bun_tag": "containment relationship"}{"bun_tag": "punctuation"},{"bun_tag": "weak interruption"}{"bun_tag": "meaning unclear"},{"bun_tag": "domain terminology"}{"bun_tag": "homonymy"},{"bun_tag": "nominalisation"},{"bun_tag": "meaning unclear"},{"bun_tag": "domain terminology"},{"bun_tag": "referential ambiguity"}{"bun_tag": "document structure"}

Array
(
    [bun_tag] => document structure
)

{"bun_tag": "polysemy"},{"bun_tag": "agent / receiver"},{"bun_tag": "relational distortion"}

Answer 1

根据Siguza的评论，JSON字符串的格式不太好。通过在两端添加方括号来解决问题，如下所示

foreach ($arr_data as $row) {
    echo $row['tags'];
    print_r (json_decode('[' . $row['tags'] . ']', TRUE));      
}

这会将输入字符串转换为有效的数组。

谢谢你的帮助。