How to load image blob? - php

Question

I have an image in binary blob field and I am unable to read.
In the database looks like this:
Yes, this is the shape of the image into text.
This and how image:
I tried several things and the only one that approximates the expected result was:
echo '<img src="data:image/jpeg;base64,'.base64_encode( $result->fields['LOGO'] ).'"/>';
Resulting in:
Content blob taken from a select:
BM606(##0``ÿÿÿÿÿÿøøøøøøÿÿÿÿÿÿÿÿÿèèèOOOBBBTTTTTTSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSQQQPPPPPPPPPPPPRRRTTTSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSTTTBBBOOOèèèÿÿÿÿÿÿgggEEE===,,,###======###+++>>>EEEgggÿÿÿÉÉÉ666+++ 444111111444 ***666ÉÉÉ$$$ ;;;777777;;; $$$ !!!???;;;;;;???""" #GVLqz ¨´­gih $$$BBB>>>>>>BBB$$$!+$/J8#cNX{eu® ¿ÌÄ ³³³&&& '''FFFBBBBBBFFF&&&(D2.Z>6dGGqVap¡¬ÁµÐÝÖMOO*N8&K5#9+' %%%´´´ÄÄÄ---)))JJJFFFFFFJJJ((( %"*N7(Z;/`A?mQLqaOcZT[S`c`lmh'L4(a?(_=-`A0F8---ÄÄÄÑÑÑ555+++NNNJJJJJJNNN***)P7%[9+^=;iO5E=:)H$P$M K"O, 9&!A0)b#)dA.eC(5-666ÑÑÑÝÝÝ###...RRRMMMMMMRRR---'C2&\:'^<8bL/0)H#^/`3^/X&^/`3_2U, 1E0*iF,fC*gA2aD###ÝÝÝèèèKKK000VVVQQQQQQVVV000!*$([<'a=5eJ.1,O'c4`-[&rK%¢rK%[&_,g1J#/M#)N8,kD.jF,B4LLLèèèñññUUU222ZZZUUUUUUZZZ222'F2(d?/gD,#8C!f6m< |d{T5ÈÒÚ{T5|dm< e5K(&$-fC-oG3_CUUUñññúúú]]]555^^^YYYYYY^^^333!+Z<+iB4cJ-$c4n7eAÈÎÕÄÈÊÊÑ×ÃÇÊÊÑ×ÄÈÊÈÎÕe#m5g81$'R;.sI4oJ)1,]]]úúúÿÿÿiii777bbb]]]]]]bbb777,<2,fB/nF-M?=#o>t:u>ÂÀ¾ÍÑפw\6¤wÍÑ×ÂÀ¾u>t:o>E* :01tK4vN?YG iiiÿÿÿÿÿÿxxx"""999gggaaaaaaggg9998YC.mF2qJ)=6H' v>^.µ¤ÖÜã±s4x<s4±ÖÜ㵤_-u=R0#5/1uL4{P#jO"""xxxÿÿÿÿÿÿ%%%===lllffffffmmm>>>&O40rI5uN'84I${<«kèöÿÜàè¦Y}=P}=¦ZÜàèèöÿ¬ky;T/%613zO7S9fJ%%%ÿÿÿÿÿÿ(((###sssllllllsss???2Z#2vK5xO)<6J) IZ¯cãéîÌÀ²H#HÌÀ²ãéî¯cZHR1#:25R:WHlV***ÿÿÿÿÿÿ,,, !!! !!! !!! !!! !!!!!!CCCxxxqqqqqqxxxCCC6N>3wL5|P/K?8"JS\ßÝÛìôþÕɺº~ÕɺìôýßÝÛ\SJA+%J98W=Z;KA---ÿÿÿÿÿÿ©©©000 ###### """"""!!!!!!""""""""" ###"""!!! """$$$""" """!!!!!!FFF{{{tttttt{{{FFF '.*3rJ5R7fJ) i;WµLñøÿäáÛðõûð÷þðõûäáÛñøÿµLUo?2,,2pL;\?}X)))111©©©ÿÿÿÿÿÿµµµ444 !!!"""#########$$$"""###!!!!!!###""""""""""""###"""!!!$$$"""###$$$"""###GGGyyyyyyGGG###$##3bD7T9~S+63;"I¯fºE¦bÌ«ÿÿÿÌ«¦bºE­dIG-)C8;Y=_?fM""" 444¶¶¶ÿÿÿÿÿÿÀÀÀ888!!!###$$$$$$%%%%%%%%%######"""$$$%%%$$$$$$###$$$$$$$$$$$$%%%$$$%%%%%%$$$###KKK~~~~~~JJJ$$$$$$/D77S9W9hK,TDII(I±f²e¹zÒªn¹z²e°dMT3/648T>bDa183### 888¿¿¿ÿÿÿÿÿÿËËË;;;"""&&&%%%%%%%%%%%%%%%&&&((($$$%%%%%%%%%%%%%%%$$$%%%&&&%%%%%%%%%%%%$$$%%%(((LLLLLL&&&%%%(((6oK:Y9U9X<[HB$r?Y¨b¦[§aYuB I-187:{V#dAdAdN$$$&&&$$$<<<ÊÊÊÿÿÿÿÿÿÔÔÔ###%%%&&&&&&&&&((('''((('''((((((%%%&&&&&&&&&&&&''')))''''''%%%'''''''''''''''PPPPPP'''&&&&&&0=58T;[<Y9bI'''3*%C*N)S+ U/H-9316SF#]C hBgI~\,*+''''''%%%AAAÕÕÕÿÿÿÿÿÿÞÞÞDDD$$$'''((('''(((((())))))(((((()))(((((((((((()))'''&&&((('''((()))))))))'''###jjjeeeeeekkk???$$$'''(((3N<:U<Z;[AwT''' ¶¯j|uYkbMf[Fr_IfIkG¦lE¡iH]222((())))))%%%EEEÞÞÞÿÿÿÿÿÿçççJJJ&&&(((***+++***))))))+++((()))***+++***)))++++++)))(((***+++***)))***!!!OOO¹¹¹³³³²²²µµµµµµ²²²³³³¹¹¹LLL ***-1.0834J<9fI8fIGJHÎäÖºÞÈϱÀkµ\°}R®vL¨pJjCjR/,.******)))***'''JJJæææÿÿÿÿÿÿîîîUUU)))+++***+++***++++++++++++---+++)))+++++++++,,,***++++++***+++***+++!!!XXXÞÞÞØØØÍÍÍÃÃÃÃÃÃÍÍÍ×××ÝÝÝXXX ***+++)))+++,,,***rxt±Æ¹¦Í´Ç¥w¼g³Y¨wNgCoT7?:***+++******++++++)))WWWíííÿÿÿÿÿÿóóó___+++---,,,+++---,,,...,,,***---,,,+++,,,...---,,,+++---...+++,,,,,,---!!!WWWÚÚÚÔÔÔÄÄÄÃÃÃÃÃÃÄÄÄÓÓÓÙÙÙXXX$$$,,,,,,,,,,,,---++++++9:9U\Wh~po{[yeCRH000,,,------+++,,,,,,...++++++aaaóóóÿÿÿÿÿÿùùùjjj---------...000---...///............///......///------------111---...$$$^^^ãããØØØÙÙÙïïïîîîÙÙÙ×××âââ\\\###,,,//////---//////............000///......---------...000---...---000kkkøøøÿÿÿÿÿÿýýýsss222///...///000/////////111///000///000000//////111000///...000//////###MMMÌÌÌ¿¿¿ÅÅÅÖÖÖÖÖÖÅÅÅÀÀÀËËËLLL$$$...000000/////////000///000000000000...///111000...///000//////...333tttýýýÿÿÿÿÿÿÿÿÿ666000222222///111111111111222111111333111111111111222222222000111111111hhheee000111111///222222111111222111222222000111111111222222222000111111///666ÿÿÿÿÿÿÿÿÿÿÿÿ222000111111111111222000000111111222222222333333111222111111111111...:::ÆÆÆÑÑÑÌÌÌÊÊÊÉÉÉÇÇÇÇÇÇÆÆÆÊÊʾ¾¾999...111111222111111000222222222333111333222222222111111111111222...222ÿÿÿÿÿÿÿÿÿÛÛÛWWWIIIJJJIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIHHHIIIIIIIIIIIIJJJIIIIIIIIIIIIEEEQQQÛÛÛäääÞÞÞÝÝÝÜÜÜÛÛÛÚÚÚÙÙÙÝÝÝÒÒÒQQQFFFIIIIIIIIIIIIIIIIIIIIIIIIHHHIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIHHHHHHWWWÛÛÛÿÿÿõõõkkk888ÁÁÁ÷÷÷ïïïîîîíííííííííìììòòò»»»888kkkõõõ¢¢¢999PPPöööîîîììììììììììììîîîöööPPP999¢¢¢^^^+++UUUùùùñññïïïîîîîîîîîîðððøøøUUU+++]]]PPP&&& ZZZÿÿÿøøøõõõõõõôôôóóó÷÷÷ÿÿÿZZZ !!! &&&QQQaaa&&& !!!""""""""""""!!!###!!!"""""""""!!!!!!"""###!!! 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How can I perform the reading of the image correctly in php?

Answer 1

OK, you are definitely using wrong MIME type. Since you said in the comment that original image is BMP, try:
echo '<img src="data:image/x-windows-bmp;base64,'.base64_encode( $result->fields['LOGO'] ).'"/>';
or:
echo '<img src="data:image/bmp;base64,'.base64_encode( $result->fields['LOGO'] ).'"/>';
If it still doesn't work, try skipping first 8 bytes, simple substr might work here. You need to skip 8 bytes, since bitmap adds 4 bytes as header for specific image type (in your case: BM) and 4 more for file size. You can find more info on Bitmap file header here.