Home  >  Article  >  Backend Development  >  https ipcrs.pbccrc.org.cn php json and array conversion

https ipcrs.pbccrc.org.cn php json and array conversion

WBOY
WBOYOriginal
2016-07-29 08:40:162319browse

1. Convert the array into a json string: json_encode($arr [,$opti//$options are optional parameters, the default is 0

Generally speaking, use json_encode($arr). But when there is When there are special needs, for example, the data contains the absolute path of the file, such as "/da1/test/123.php", direct json_encode will escape the forward slash "/" into "/",

At this time, you need to add special parameters Now in the options, the options optional parameters are as follows:

JSON_HEX_TAG (integer)
所有 < 和 > 转义成 \u003C 和 \u003E。 

JSON_HEX_AMP (integer)
所有 & 转义成 \u0026。

JSON_HEX_APOS (integer)
所有 ' 转义成 \u0027。 

JSON_HEX_QUOT (integer)
所有 " 转义成 \u0022。 

JSON_FORCE_OBJECT (integer)
使一个非关联数组输出一个类(Object)而非数组。 在数组为空并且接受者需要一个类(Object)的时候尤其有用。 

JSON_NUMERIC_CHECK (integer)
将所有数字字符串编码成数字(numbers),例如“1”编译成 1
JSON_BIGINT_AS_STRING (integer)将大数字编码成原始字符原来的值。 
JSON_PRETTY_PRINT (integer)
用空白字符格式化返回的数据。使其更加美观

JSON_UNESCAPED_SLASHES (integer)
不要转义 /,不加这个option会把“/”转义成“\/” 

JSON_UNESCAPED_UNICODE (integer)
以字面编码多字节 Unicode 字符(默认是编码成 \uXXXX)。

2. Change the json string into an array: json_decode($json_str[,assoc=false]);/$json_str is the corresponding json string, and assoc is Optional parameters, the default is false

The optional parameters are as follows:

assoc为false时,json_decode会返回一个对象(object),而非数组,可以通过$obj->attr;的方式访问对象$obj中名为attr的属性。
assoc为true时,json_decode返回一个数组(array),可以通过array[key]的方式访问数组array中对应键为key的值

The above introduces the json and array conversion of https ipcrs.pbccrc.org.cn php, including the content of https ipcrs.pbccrc.org.cn. I hope it will be helpful to friends who are interested in PHP tutorials.

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn