php - regex int or float -


मेरा regex एकल अंक नंबर पर काम नहीं करेगा 

  / ^ [0-9 ] {1,7} \। [0- 9] {1,2} $ /

मुझे अहस्ताक्षरित संख्याओं पर काम करने की आवश्यकता है: 

  1 (एक अंक संख्या, बिना भिन्न अंश) - वर्तमान में यह 1.0 पर विफल रहता है; 0.31 (फ़्लोटिंग पॉइंट नंबर)

अंश से पहले 1-7 अंक हो सकते हैं; अंश 1-2 अंकों के बाद।

धन्यवाद!

आप निर्दिष्ट कर रहे हैं कि 1-7 अंक होने चाहिए, फिर एक वैकल्पिक दशमलव बिंदु, फिर 1-2 और अंक। कोशिश करें: 

  / ^ [0-9] {1,7} (?: [[0- 9] {1,2})? $ /

ध्यान दें कि यह दशमलव दशमलव स्थानों (यानी "1.") की अनुमति नहीं देता है। यदि आप इसे अनुमति देना चाहते हैं, तो यह काम करना चाहिए: 

  / ^ [0-9] {1,7} (?: \। [0- 9] {0,2})? $ /

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