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php读写json资料

日期：2014-05-16　 浏览次数：20385 次

php读写json文件

PHP Simple Comments Read/Write jSon data to text file

A few days ago i had to build a simple comment form. First i thought about MYSQL etc, but this all seems to be too complicated. So i came up with a simple solution based on jSon and a TXT file.

So that’s how it cooks:

1. Load the text file with the comments and convert it to an array with json_decode 

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/* get comments from file */

$commentsText
 =
 file_get_contents
(
'comments.txt'
)
;

?
/* create array list from comments */

$commentsList
 =
 json_decode
(
$commentsText
,
true
)
;

2. Check if a new comment was posted and save to file when valid. 

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/* check if new comment is posted and minimum 3 characters are set */

if
(
 !
empty
(
$_POST
[
'comment'
]
)
 &&
 strlen
(
$sComment
)
 >
 3
 )
{

?
        /* get posted comment and remove all HTML */

        $sComment
 =
 strip_tags
(
$_POST
[
'comment'
]
)
;

?
        /* add comment, client IP and date to array */

        $commentsList
[
'comments'
]
[
]
 =
 array
(

                'text'
 =>
 $sComment
,

                'ip'
 


                        

                    
                    


                    

                    



    

        
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