Convert Binary to File Using PHP - php

Question

I'm using a service that gives you a wav file. this service gives me base64 binary code as a result. I want to convert it to a wav file.
I've been googling for it and couldn't find anything. here is my code :
$wsdl=' < url > ';//url to WSDL
$client = new SoapClient($wsdl);
$param=array(
'userName'=>' < my username> ',
'password'=>' < my password > ',
'messageId'=>1063716
); // parameters needed to download the file
try{
$res=$client->DownloadMessage($param) ;
$base64Binary = $res->DownloadMessageResult;
echo $base64Binary;
}catch(Exception $e){
echo '<pre>' ;
var_dump($e->getMessage());
echo '</pre>' ;
}
and the result of the echo is this:
RIFF&WAVEfmt #€>dataÞ%¯ÿ#HrÿvÿÿâÿÂÿ7Æÿ‚ÿžÿ€ÿÎÿÌÿQQÝV…‚© K 6(Iv7%ýÿñÿÃÿªÿÐÿ¦ÿÜÿWÿKÿ®ÿ¯ÿÝÿ”ÿ•ÿwÿ¹ÿ¶\JŸœñ{KH66þÿõÿõÿäÿªÿDÚÿ÷ÿªÿìÿÒÿNóÿØÿÈÿÝÿÄÿÞÿžÿ'Úÿ¾ÿÒÿYÿqÿ…ÿÌÿ×ÿÃÿµÿ¸ÿÉÿÏÿñÿŸ‰¿uÚÿ$x;^UÁÿ¾ÿÅÿ|ÿ­ÿ¤ÿøÿüÿÿ™ÿèÿªÿmÿ…ÿAÿ™ÿŒÿ0ÿÿˆÿB•ùÿ·ÿ†™ðjÖ=1µê}*|!<ÿ‘ÿNÿ|ÿ¦ÿÿÿ¼þ,ÿ(ÿÖÿÿyÿÇÿÕÿÒÿîÿy 0TOHƒ-Q$’‰kO>\¾µÇÿ¥ÿØÿÿ(¸ÿÁÿŸÿ÷ÿêÿœÿõÿsÿ¤Ùÿ#ôÿƒÿ[Ÿâÿ›ÿÝÿ;§ÿ,ÕÿMK¾ÿ<�EÎÿŒÿ©ÿfÿ²ÿ²ÿ¢ÿ¿ÿªÿóÿ0aãÂ~T¬íq]/.D*áÿÿ•ÿ`ÿoÿsÿˆÿ<�.ßÿaÞ[‘•kùÿ ÿhÿ:ÿóþ0ÿWÿšÿêÿ1|N©ÿÊÿßÿýÿ¿ÿ¸ÿSÿÝÿúÿ)°ÿ‰ÿâÿwÿÙÿ^ÿ¼ÿ­ÿ®ÿÕÿhóÿ¶ÿôÿe)DãÿØœˆ=o]¨˜1+ J»+;çÿÍÿÔÿg¤ÿÚÿÿÓÿÿàÿÖÿÍÿ?ÖÿÖÿD oöÿ}ÿ—ÿaÿ¤ÿ¨ÿvÿ·ÿ1ÿ¼ÿ”ÿíÿˆÿ09#°ÿC¨ÿ: ?`%_îÿJ*[dBãÿQëÿïÿüÿïÿÐÿcÿ›ÿ¼ÿøÿÕÿÇÿäÿÜÿH«ÿ¹ÿèÿÉ$΀aCMy2r3^ž<�ØÿHçÿ-†ÿŽÿ#ÿ%ÿBÿ‹ÿºÿ¡ÿ"éÿ÷ÿ«ÿçÿçÿ/öÿ¡ÿôÿ¸ÿõÿéÿrvgj%?²ÿÒÿÿöÿËÿ®ÿ‡ÿ<ÿ¼ÿ­ÿD1ŠcY+ Iuÿÿ04SÌÿ:<ÿXÿûþyÿFÿ÷ÿŒÿiÿÙÿŒÿòÿ¥ÿ ÏÿðÿÑÿhO#Òý¼» ¶&1\ÿgÿžÿªÿœÿûÿ#þÿ3 µûy(E„ÿ/¥ÿŸÿŒÿ2ÿ!ÿúþ_ÿÈþ¾ÿ·ÿpÿŒÿ:ÿøÿÝÿæÿãÿ_–±œ2ë•òÚË•xøÿÛÿåÿªÿîÿÎÿÃÿIÿ\ÿj·ÿ·ÿcÿËÿ<�=6xQ„R„=…ÿdÿœÿMÿ ýÿ‚Mü±PþÿžÿmÿƒÿNÿéÿ ÿOŒÿmÿVÿÿ$m›ûÿêÿ›ÿ2òþÕþvÿäÿþÿ{ÿûÿnÿ-Q\v[ÿÿ2ÿ!ÿ—þ´ÿDÿ8ÿ™ÿ*ÿäÿ)fJýŒ5hÈ3ÃJOVk/jÆ*<ˆv/\pÿÿçþ¨þ›þtþMþqþÀþIÿYÿBÿ¾ÿúÿB6t¥õßñÛ()¼ÿëk¢ÿj7“„ÿÿïÿýÿñÿ&ùÿÎÿcG¤ÿÈÿÀÿ²”ÿÞÿXÿ*ÿÿ,ÿ þ³þéþ¥¤wûÿq;æÿÿÀÿðÿEÇþ$ÿÿ­ÿ«ÆÿàÿŽÿwHUÿ1ÿvÿhÿ^ÿÿaþéþRÿÿµþÿ¡ÿÍÿrÿ„ÿaÿÀÿïÿ~ÿÃÿòÿ«TÓrb¿û‰ý¿Û}Iä|«}v¾o1Ñÿç;õÿûý<þzþ¾ýêüüü¿þ–\ÛÈé¤Z’%½ÿßý^ýÆýþdÿIž‚q_舶Á¾£þŸý°þdýêüÿ&¼:=o2ý;ÿ"þžþÖÈ^ÿü„û˜ýþbüWùø.úðû{üú…û¿šþö¹öòörùøØñô„üV¹¬ý&üôÙ¨û÷zü B¹ÿþŸÿœ¶}ÿóõàþŠþQô³â ºù7þ»ó0ý ýðä¡ÜåËôcÇ©è üÚõêÌî?öøò9òø‰°ö¶qÍÅmtî%¸|EùøÿFax¶/CÞÁ~ˆ(&&D(üKñ+÷OGëÔÖãlö‹úÁÿFö îåübî\ÞÐæNû³:T~4 ‰›þ%ä …ª¹ðÐîE_ÐûfúÑûýÞþ…ÿéÿÿLþIý ülüwüœý8þCz2…wÝý:O6'%êõÀè¿ñcû áSØÒï(¯]¢õ)ý÷|íáÚéIÿïb = Ëøºî9ð;úã s‘›!ï†`&üvÿÌTGÔáÿriþÀü2ü2ýÊý`üü-ÿV Mÿ¬ürüàü]ý(üÿû°üÿ–¬ÿÿLÿ÷ÿÿ'þÿÿwþ÷åþkG;Æ%Ýÿ®ìóã<ô`tæÁØðI"n ùìëõ õéeÜgàe÷´8MRüÍ{ÿ&ïsæ[ó~þmH¸¤2™ÿîûœþw†o†ÕÒ×6¦ á±þñýõüîüÿ²ÿÿÑÿêÿþþÂþþ¡ýýký¶ýÚþŒÿ)·ÿhÿ“þÖþëýÿNþÍ?ÿøìþòE9€$¦þîièô¾ü}áùØHóaÅ lÊûŒö˜Åõžã¿Û$á^õ‘ÓT[›'0qîcèô}ÿ‹ Ks1T]åYÎþ¿þL‡mΤ<ÿ´ªaÿÊü±þ€a#ÿËü$þ¼È×ýðú9üÁþ¡þý}ý˜ÿ§Lÿþ´ý¡ÿ zËþÜÿÇÿ®FŠvÿißfe)¼0cDûJðÝïúþÎîÖÃæåvŠˆîö1>éí’Þ3Ûjê« ÿ×þªöà Lù¸ì¬ñ YXÝ ýuì­ VØÿ'i+[Èê?‘ÿiþºÿž=€0M*ΣþŠüöûÈüÙüAý~ý‘þ)ÿšÿ‰þÙý(ý!ýý"ý¼ýþÉÿÉÿ/dÿδýµ ,P"|ö¹þ7ýãÝtï:ýÊ _ký÷ÿ" $Êñ_ç-æHðìøôÓò=ûõÆ[ücú×ÿåÐX[WdD MPsþÿ1{ñÔì#kf¦Sè#pÿ-ÿGµÿÃþÿmþœþþ¦ý0ýiý'ýý.ýâüŒýÃý&þ¯ýMþÄýºþQþ"ÿÕþÓÿÁÿ|½óŽ6!_ ?…amùØç‡ë%ñã÷×þ¦û´ú’‚Çÿ$úQò³ðó…ðOîÝñH÷0ý:ù#Ê ærúÕm Z6; tXÞóؽe㪎§ÁÈb¸ò‘âð¡s'¾|ÿdþ|ýý“ünüVüšü­ü#ýDýŒý–ý¦ýŽýbýPýñü"ýÂüeý ý?þ¼ý¡ÿ—þÚÂóÆ ·TRÁÿèùø‡õŽðRï»ï¨îäñSó"ôöø¯ø"û½ûûÎûgû1ûJûûúËúPýÙþ­çÊ* º BX!ó±Ç)#ƒÔ‚(fûµ%'öÀÿäþþ2ýœü/ü˜ûwû;û+û+ûNûWû†ûËûàûWüküý ýðýÏýùþ¹þÿpQÃì £¡Ž x]ÚÿÞûÿõãñ÷îÛê[ëSëçêÅìï=ñnõ¤ø¼úCýÿ ^Ò[uI£H}ÖY;÷ ØÇ —æ£5» bãFÂEŽ¼$ÿCþ8ýEüûâú_úBúúMúyúûQû.ügü:ýpý!þ#þÕþìþOÿ§ÿbžÁ\í Ñ~CË[7fúµõIò'íåëRëvé„êìÍíSñ‡õÕ÷ûüýXÿW°¨Ôùäë=é”ãÞ²Ägwï4,Ø· 3¬å-¬I G ÀÖ6<®ÿïý)ülúRùFø!÷ìöÓö®ö'÷[÷Ê÷2ø!ù)ù8úFúOûwûãüàü‰þÅþBÞ…rÂ~~ƒÇÙýGù¢õšìOè`ç×ã/çì¥ì+ñýõ‘ø>üVÿ2ý?üûõø"øBö õáörúþþ8ÓèQ…€îO¥Q×ó»:Íà$ ½_²ps èh³þý´üžüÛû%ü0üàûqûæúîøØ÷iöäô÷ó$ó®ò›ò&ôkôA÷øKûü´ÿŽÿ“" HÉKlç0”hú²ôåêðìºèÞîÚòÎóâ)ø¥³Éù•ùiô|éõæäUáÝèÔîô h r5`ˉ)ãû‹Üu¯d- šo4þj! 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is this a base 64 binary? if it is, how to convert it to a wav file?

Answer 1

The string you're echoing looks like a plain wav stream. Just write it to a file without any decoding and you'll end up with a wav file. Be sure to use binary mode when writing the file.
$ptr = fopen("file.wav", 'wb');
fwrite($ptr, $e->getMessage());
fclose($ptr);
Wav header info: https://en.wikipedia.org/wiki/WAV#RIFF_WAVE

Answer 2

If the base64 encoded data already represents an MP3 file, it should be as easy as decoding the base64 data and storing it in a file:
file_put_contents('audio.mp3', base64_decode($base64Binary));