ios - Objective-C Json String to PHP Array -

i doing accepted answer here doesn't work me. null.

i produce json array with:

    nserror* error;     nsdata *result =[nsjsonserialization datawithjsonobject:self.filenameslistforupload options:0 error:&error];     nsstring *displayjson = [[nsstring alloc] initwithdata:result                                              encoding:nsutf8stringencoding];      nslog(@"json result %@",displayjson); 

this prints ["sample.pdf","sample-1.pdf"] use following command post string

curl -f "namelist=["sample.pdf","sample-1.pdf"]" url

in php code;

//get json string     $jsonstring = $_post["namelist"];     var_dump($_post["namelist"]);     $arrayofnames=json_decode($jsonstring,true);     var_dump($arrayofnames);     echo "arrayofnames: ",$arrayofnames,"\n"; 

result is;

string(25) "[sample.pdf,sample-1.pdf]" null arrayofnames: 

or if add quotes '' get;

string(27) "'[sample.pdf,sample-1.pdf]'" null 

why "" dismissed when use _post? [sample.pdf,sample-1.pdf] posting ["sample.pdf","sample-1.pdf"] ?

how can parse json string , put array?

if send request curl -f "namelist=["sample.pdf","sample-1.pdf"]" url

var_dump($_post["namelist"]) return string(25) "[sample.pdf,sample-1.pdf]".

if send curl -f 'namelist=["sample.pdf","sample-1.pdf"]' url

var_dump($_post["namelist"]) return string(33) "[\"sample.pdf\",\"sample-1.pdf\"]".

you can use second option , remove backslashs string.

<?php     $jsonstring = $_post["namelist"];     var_dump($jsonstring);     $jsonstring = str_replace("\\", "", $jsonstring);     var_dump($jsonstring);     $arrayofnames=json_decode($jsonstring,true);     var_dump($arrayofnames); ?> 

objective-c side:

nsdata *jsonarray =[nsjsonserialization datawithjsonobject:@[@"sample.pdf", @"sample-1.pdf"] options:0 error:nil]; nsstring *stringfromjsonarray = [[nsstring alloc] initwithdata:jsonarray encoding:nsutf8stringencoding]; nslog(@"%@", stringfromjsonarray); //["sample.pdf","sample-1.pdf"]  nsstring *requeststring = [nsstring stringwithformat:@"namelist=%@", stringfromjsonarray]; nslog(@"%@", requeststring); //namelist=["sample.pdf","sample-1.pdf"]  nsurl *url = [nsurl urlwithstring:@"http://127.0.0.1/t.php"]; nsmutableurlrequest *request = [[nsmutableurlrequest alloc] initwithurl:url cachepolicy:nsurlrequestuseprotocolcachepolicy timeoutinterval:60.0]; [request sethttpmethod:@"post"]; [request sethttpbody:[requeststring datausingencoding:nsutf8stringencoding]]; nsdata *responsedata = [nsurlconnection  sendsynchronousrequest:request returningresponse:nil error:nil]; nsstring *responsestring = [[nsstring alloc] initwithbytes:responsedata.bytes length:responsedata.length encoding:nsutf8stringencoding]; nslog(@"%@", responsestring); /* string(33) "[\"sample.pdf\",\"sample-1.pdf\"]" string(29) "["sample.pdf","sample-1.pdf"]" array(2) {   [0]=>   string(10) "sample.pdf"   [1]=>   string(12) "sample-1.pdf" } */