这种类型的字符串如何变成对象，json_decode结果为null，content的内容看做字符串

[徐卡丘]

[{"id":"288","name":"test",,"identity":"TES","content":"{"module":"TEST","label":"ceshi","description":"this is a test"}","status":"0"}]

[xuzuning]

$s =<<< TXT
[{"id":"288","name":"test","identity":"TES","content":"{\"module\":\"TEST\",\"label\":\"ceshi\",\"description\":\"this is a test\"}","status":"0"}]

TXT;
print_r(json_decode($s));

Array
(
    [0] => stdClass Object
        (
            [id] => 288
            [name] => test
            [identity] => TES
            [content] => {"module":"TEST","label":"ceshi","description":"this is a test"}
            [status] => 0
        )

)

[徐卡丘]

引用 7 楼 xuzuning 的回复:

开发中可能用到的算法，php 基本上都给你准备好了，你只需要发挥的的想象就可以了

$a = Array(
    'id' => 288,
    'name' => 'test',
    'desc' => 'test',
    'identity' => 'TEST'
);
$b = Array(
    'name' => 'test2',
    'desc' => 'modify test',
    'schemaTemplateId' => 1,
    'sortNo' => 1
);

print_r(array_intersect_key($a, $b));
print_r(array_intersect_key($b, $a));

Array
(
    [name] => test
    [desc] => test
)
Array
(
    [name] => test2
    [desc] => modify test
)

谢谢版主，我感觉这种函数会有，就是可能用得少，我也没百度到

[xuzuning]

那你就不看手册的吗？

[徐卡丘]

引用 1 楼 xuzuning 的回复:

$s =<<< TXT
[{"id":"288","name":"test","identity":"TES","content":"{\"module\":\"TEST\",\"label\":\"ceshi\",\"description\":\"this is a test\"}","status":"0"}]

TXT;
print_r(json_decode($s));

Array
(
    [0] => stdClass Object
        (
            [id] => 288
            [name] => test
            [identity] => TES
            [content] => {"module":"TEST","label":"ceshi","description":"this is a test"}
            [status] => 0
        )

)

{"module":"TEST","label":"ceshi","description":"this is a test"}有没有什么函数可以把这个里面的分号转义一下？

[xuzuning]

$s =<<< TXT
[{"id":"288","name":"test","identity":"TES","content":"{"module":"TEST","label":"ceshi","description":"this is a test"}","status":"0"}]
TXT;
$s = preg_replace_callback('/("{)(.+)(}")/', function($m) { return $m[1] . addslashes($m[2]) . $m[3];}, $s);
print_r(json_decode($s));

[徐卡丘]

引用 3 楼 xuzuning 的回复:

$s =<<< TXT
[{"id":"288","name":"test","identity":"TES","content":"{"module":"TEST","label":"ceshi","description":"this is a test"}","status":"0"}]
TXT;
$s = preg_replace_callback('/("{)(.+)(}")/', function($m) { return $m[1] . addslashes($m[2]) . $m[3];}, $s);
print_r(json_decode($s));

刚刚百度到还有个addcslashes函数，这样我就可以只转义“，如果我用addcslashes，不知道其他字符会不会影响json_decode的结果？？

[xuzuning]

有没有问题，请自行检验
正常情况下，程序是不会产生你示例的字符串的，所以并不会出意外

$a = [ 'a'=>1, 'b' => json_encode(['a'=>'a'])];
echo json_encode($a);
//{"a":1,"b":"{\"a\":\"a\"}"}

但你非要手工胡来的话，纰漏总是堵不完的

[徐卡丘]

引用 5 楼 xuzuning 的回复:

有没有问题，请自行检验
正常情况下，程序是不会产生你示例的字符串的，所以并不会出意外

$a = [ 'a'=>1, 'b' => json_encode(['a'=>'a'])];
echo json_encode($a);
//{"a":1,"b":"{\"a\":\"a\"}"}

但你非要手工胡来的话，纰漏总是堵不完的

嗯嗯，那个，我现在有两个数组，返回两个具有相同键名部分的数组：
Array
(
[id] => 288
[name] => test
[desc] => test
[identity] => TEST
)
Array
(
[name] => test2
[desc] => modify test
[schemaTemplateId] => 1
[sortNo] => 1
)
返回
Array
(
[name] => test
[desc] => test
)
Array
(
[name] => test2
[desc] => modify test
)

[xuzuning]

开发中可能用到的算法，php 基本上都给你准备好了，你只需要发挥的的想象就可以了

$a = Array(
    'id' => 288,
    'name' => 'test',
    'desc' => 'test',
    'identity' => 'TEST'
);
$b = Array(
    'name' => 'test2',
    'desc' => 'modify test',
    'schemaTemplateId' => 1,
    'sortNo' => 1
);

print_r(array_intersect_key($a, $b));
print_r(array_intersect_key($b, $a));

Array
(
    [name] => test
    [desc] => test
)
Array
(
    [name] => test2
    [desc] => modify test
)