php - regex for extracting hash tags without spaces -

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मैं इसका उपयोग कर रहा हूं: 

  $ t = "#hashtag #goodhash_tag संयुक्त राज्य # L33t यह "; $ QueryVariable = ""; If (preg_match_all ('/ (^ | \ s) (# \ w +) /', $ t, $ arrHashTags) gt; 0) {array_filter ($ arrHashTags); ($ ArrHashTags) array_unique; $ Count = count ($ arrHashTags [2]); यदि ($ count & gt; 1) {$ counter = 1; विदेशी मुद्रा ($ arrHashTags [2] $ strHashTag के रूप में) {यदि (preg_match ('/ # \ d * [a-z _] + / i', $ strHashTag)) {if ($ counter == $ count) {$ queryVariable = $ StrHashTag; } और {$ queryVariable = $ strHashTag। "और"; } $ NewTest = str_replace ($ arrHashTags [2], "", $ टी); } $ काउंटर = $ काउंटर + 1; }}} Echo $ queryVariable। "& Lt; br & gt;"; // यह टैग की सूची $ newTest गूंज; // यह शेष टेक्स्ट है   
 ऊपर  $ t  पर आधारित आउटपुट है:  
  #hashtag और #goodhash_tag और # l33t संयुक्त राज्य यह   
 पहली समस्या:  
 अगर  $ t = '# हैशटैग # अच्छाहैश_टैग संयुक्त राज्यों # l33t this';  यानी दो टैग्स के बीच अंतरिक्ष के बिना, आउटपुट हो जाता है:  
  #hashtag और # l33t #goodhash_tag संयुक्त राज्य इस   
 दूसरी समस्या:  < P> अगर  $ t = '#hashtag #goodhash_tag united states # l33t यह # 123';  अर्थात एक अवैध टैग  # 123  के साथ यह किसी भी तरह से निकाले गए टैगों की मेरी सूची में परेशान करता है  $ queryVariable  जैसे उत्पादन हो जाता है  
  #hashtag और #goodhash_tag और # l33t और // ध्यान दें अतिरिक्त 'और' संयुक्त राज्यों यह   
 कृपया इन दोनों पर कोई मदद कर सकता है?   
 
 
 इतने सारे चयन आदि के लिए। आपका रेगेक्स आप बस निम्नलिखित हो सकते हैं:  
  $ t = "#hashtag #goodhash_tag संयुक्त राज्य # l33t यह # 123 # tte # anothertag sth"; $ QueryVariable = ""; Preg_match_all ('/ (# [A-z _] \ w +) /', $ t, $ arrHashTags); Print_r ($ arrHashTags [1]);   
 
 उन्हें  और  के साथ स्ट्रिंग के रूप में प्राप्त करने के लिए, आप implode का उपयोग कर सकते हैं।  
  $ queryVariable = implode ($ ArrHashTags [1], "और");   
 शेष पाठ के लिए, आपके पास  preg_replace  या  str_replace  हो सकता है (जो भी आप के साथ सहज हैं)।  
 
 यहां है।

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