json - $.getJson() Problem and returning an undefined value -

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मेरे पास एक PHP स्क्रिप्ट है जो JSON ऑब्जेक्ट का उत्पादन करता है।

मेरी jquery में मैं इस कोड का उपयोग कर रहा हूं Php स्क्रिप्ट कॉल करने के लिए। 

  $ .getJSON ("/ st / std.php", फ़ंक्शन (डेटा) {चेतावनी (डेटा); $ ("myspan")। पाठ (डेटा) ;});

मैं पीएसपी फ़ाइल में जेएसओएन एन्कोडेड से डेटा कैसे प्राप्त करूं? IAM के रूप में IAM कुछ कोड डाल रहा है जो एक php फ़ाइल में एजेक्स लुकअप करेगा I पीएचपी में

मान लीजिए कि यदि हम पाठ बॉक्स में "एएए" इनपुट करते हैं तो उसे "एएए-एएनएए" प्राप्त करना चाहिए। इसे JSOn एन्कोडेड ऑब्जेक्ट खोजना चाहिए और लेबल प्राप्त करना चाहिए। 

   
  
 
 
 सुनिश्चित करें कि प्रतिक्रिया हैडर में शामिल हैं:  
  सामग्री प्रकार: आवेदन / जेसन  
 
 और नहीं 
 
  सामग्री-प्रकार: आवेदन / जेसन; आईआर 9 में  
 
 मुझे अनुभव था जहां डेटा  $ .getJSON  से  अपरिभाषित  था, भले ही नेटवर्क फलक आप अनुरोध किया जा रहा है और वांछित JSON युक्त प्रतिक्रिया शरीर देख सकता है।

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