database - Check if user exist with mysqli doesn't work - 


  $ stmt = $ db- & gt; तैयार ("चुनें * उपयोगकर्ता से कहां नाम = 'स्टीव जॉब' ); $ Stmt- & gt; निष्पादित (); यदि ($ stmt- & gt; num_rows) {गूंज "1"; }   
 यह मेरे एजेक्स कॉलबैक में रिक्त वापस आ गया है। मैं घंटों के लिए डिबगिंग कर रहा हूं।   
 
 
  $ stmt = $ db- & gt; तैयार (" चयन करें * उपयोगकर्ता से कहां नाम = 'स्टीव अय्यूब' '); $ Stmt- & gt; निष्पादित (); $ Stmt- & gt; store_result (); $ NumRows = $ stmt- & gt; num_rows; यदि ($ numRows & gt; 0) {गूंज "1"; }   
 आपको  num_rows     के साथ काम करने से पहले  store_result  का उपयोग करने की आवश्यकता है।

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