Php converts an array to a string. The problem array is converted into a string. the solution is an array problem. now I get a two-dimensional array variable: $ postanswer $ _ POST [answer {$ showarr [cs_id]}]; replication generation problems
Converting arrays into strings
Solution
For an array question, I get a two-dimensional array variable: $ postanswer =$ _ POST ["answer {$ showarr ['CS _ id']}"];
The printed value is Array.
(
[43] => Array
(
[A] =>
[B] => B
)
[42] => Array
(
[C] => C
[D] => D
)
[41] => Array
(
[B] => B
[C] => C
)
[40] => Array
(
[B] => B
[D] => D
)
[39] => Array
(
[A] =>
[D] => D
)
[35] => Array
(
[B] => B
)
)
Now I want to group their previous IDCs. The group members are separated by commas. I don't know which hero can help me. thank you!
Reference answer
$ MyArr = array ();
$ ListArr = array ();
Foreach ($ _ POST ["answer {$ showarr ['CS _ id']}"] as $ key => $ item ){
Foreach ($ item as $ key2 => $ value ){
$ ListArr [] = $ key2. '-'. $ value;
}
$ MyArr [$ key] = join (',', $ listArr );
}
Var_dump ($ myArr );
?? So?
Reference answer
Separated by t
Reference answer
Original post published by yafeikf at [url = http://bbs.111cn.cn/redirect.php? Goto = findpost & pid = 813511 & ptid = 100247] link Mark [img] http://bbs.111cn.cn/images/common/back.gif?/img=#/url]
Hey! No! Display: array (5 ){
[47] =>
String (3) "A, B"
[46] =>
String (7) "A, B, B, C"
[45] =>
String (11) "A, B, B, C, A, C"
[44] =>
String (15) "A, B, B, C, A, C, B, D"
[36] =>
String (19) "A, B, B, C, A, C, B, D, C, D"
}
Is it a loop problem?
[]
Reference answer
Yes! I have not tested it!
$ Postanswer =$ _ POST ["answer {$ showarr ['CS _ id']}"];
$ New_array = array ();
For ($ postanswer as $ key => $ value ){
If (isset ($ new_array [$ key]) {
$ New_array [$ key]. = ','. $ value;
} Else {
$ New_array [$ key] = $ value;
}
}
Print_r ($ new_array );
?>
Reference answer
Let's change your mind.
Not to mention how to implement it, but first think about your intention.
This will cause problems. what if there is "," in your array?
How can you restore it?
Get rid of this idea and use serialize and unserialize.
Reference answer
Original post published by liexusong at, [url = http://bbs.111cn.cn/redirect.php? Goto = findpost & pid = 813732 & ptid = 100247] link Mark [img] http://bbs.111cn.cn/images/common/back.gif?/img=#/url]
Yes! I have not tested it!
Haha... no! By the way, an error occurs. should it be foreach rather than for loop?
Reference answer
Original post published by hubinhust at [url = http://bbs.111cn.cn/redirect.php? Goto = findpost & pid = 813834 & ptid = 100247] link Mark [img] http://bbs.111cn.cn/images/common/back.gif?/img=#/url]
Let's change your mind.
Not to mention how to implement it, but first think about your intention.
This will cause problems. what if there is "," in your array?
How can you restore it?
Get rid of this idea and use serialize and unserialize.
This should not appear, at least here! Because I submitted the test answer ABCD.
Reference answer
Oh ~ I saw it wrong! It should be like this!
$ Postanswer =$ _ POST ["answer {$ showarr ['CS _ id']}"];
$ New_array = array ();
Foreach ($ postanswer as $ element ){
Foreach ($ element as $ key => $ value ){
If (isset ($ new_array [$ key]) {
$ New_array [$ key]. = ','. $ value;
} Else {
$ New_array [$ key] = $ value;
}
}
}
Print_r ($ new_array );
?>
Reference answer
Original post published by liexusong at 2009-1-3 20:10 [url = http://bbs.111cn.cn/redirect.php? Goto = findpost & pid = 813889 & ptid = 100247] link Mark [img] http://bbs.111cn.cn/images/common/back.gif?/img=#/url]
Oh ~ I saw it wrong! It should be like this!
We can't do it this time, but we can output this: Array
(
[A] => A,
[D] => D, D, D
[B] => B, B
[C] => C
)
How to solve the problem of converting the arrays array into strings: an array problem. I now get a two-dimensional array variable: $ postanswer = $ _ POST ["answer {$ showarr ['CS _ id']}"]; copy generation...
