Convert comma format Numbers in CSV data

Hi,
I am parsing some data and have a string of CSV with some numerals separated by comma.

Incase I split the csv based on the delimiter the numeral also gets affected.

String has data

 {futLink:\\/live_market\\/dynaContent\\/live_watch\\/get_quote\\/GetQuoteFO.jsp?underlying=ICICIBANK&instrument=FUTSTK&expiry=28NOV2013&type=-&strike=-,otherSeries:[EQ],lastUpdateTime:18-NOV-2013 14:13:01,tradedDate:18NOV2013,data:[{extremeLossMargin:5.00,cm_ffm:1,21,433.11,bcStartDate:01-JUN-13,change:21.90,buyQuantity3:50,sellPrice1:1,074.00,buyQuantity4:25,sellPrice2:1,074.10,priceBand:No Band,buyQuantity1:5,deliveryQuantity:16,55,067,buyQuantity2:254,cm_adj_low:756.90,sellPrice5:1,074.30,quantityTraded:33,09,424,buyQuantity5:26,sellPrice3:1,074.15,sellPrice4:1,074.25,open:1,063.00,cm_adj_high:1,238.40,low52:756.90,securityVar:9.09,marketType:N,pricebandupper:1,157.30,totalTradedValue:25,674.10,faceValue:10.00,ndStartDate:-,previousClose:1,052.10,symbol:ICICIBANK,varMargin:9.09,lastPrice:1,074.00,pChange:2.08,adhocMargin:-,companyName:ICICI Bank Limited,averagePrice:1,077.13,secDate:14NOV2013,series:EQ,isinCode:INE090A01013,indexVar:-,pricebandlower:946.90,totalBuyQuantity:98,929,high52:1,238.40,purpose:ANNUAL GENERAL MEETING\\/DIVIDEND RS.20\\/- PER SHARE,cm_adj_low_dt:28-AUG-13,closePrice:-,recordDate:-,cm_adj_high_dt:28-MAY-13,totalSellQuantity:1,50,824,dayHigh:1,087.80,exDate:30-MAY-13,sellQuantity5:24,bcEndDate:24-JUN-13,ndEndDate:-,sellQuantity2:101,sellQuantity1:17,buyPrice1:1,073.90,sellQuantity4:166,buyPrice2:1,073.85,sellQuantity3:1,applicableMargin:14.09,buyPrice4:1,073.65,buyPrice3:1,073.70,buyPrice5:1,073.60,dayLow:1,059.10,deliveryToTradedQuantity:50.01,totalTradedVolume:23,83,566}],optLink:\\/marketinfo\\/sym_map\\/symbolMapping.jsp?symbol=ICICIBANK&instrument=-&date=-&segmentLink=17&symbolCount=2} 

Where the values like 1,21,433.11 and 1,50,824 should be converted to regular numerals like 121433.11 then can use the string for further splitting.

Could you suggest any php based function or any technique to achieve the same.

It looks like a JSON string to me: www.php.net/json

Unfortunately, those comma’s also mess up the json parsing. The best solution would be to have whoever supplies you that data, to correct it.