mysql - How can I echo a BLOB using JSON array in php? -


i have seen many examples cannot echo looking for. goal convert blob base64 , echo json array using php. aware storing images in database blob not proper approach want sake of knowing how (general consensus seems storing references images in turn stored in file system better approach). aware there multiple security issues in php code (very new php). know this.

here structure of table: http://s27.postimg.org/lod0ec0er/screen_shot_2015_05_13_at_10_49_29_pm.png

here contents of table: http://s15.postimg.org/joks2fvzv/screen_shot_2015_05_13_at_10_51_34_pm.png

here first php code attempt (before realizing had convert blob base64): 

    if (mysqli_connect_errno())     {         echo "failed connect mysql: " . mysqli_connect_error();     }      $sql = "select * testimages";      if($result = mysqli_query($con, $sql))     {         $resultarray = array();         $temparray = array();          while($row = $result->fetch_object())         {             $temparray = $row;             array_push($resultarray, $temparray);         }          echo json_encode($resultarray);     }      mysqli_close($result);     mysqli_close($con); ?>

here above code displays (i believe image null because json cannot naturally handle blob): htttp://s2.postimg.org/k2vi3r0ft/screen_shot_2015_05_13_at_10_52_06_pm.png

after realizing have convert blob base64 here modified php code: 

    if (mysqli_connect_errno())     {         echo "failed connect mysql: " . mysqli_connect_error();     }      $sql = "select * testimages";      if($result = mysqli_query($con, $sql))     {         $resultarray = array();         $temparray = array();          while($row = $result->fetch_object())         {             $row["image"] = base64_encode($row["image"]);             $temparray = $row;             array_push($resultarray, $temparray);         }          echo json_encode($resultarray);     }      mysqli_close($result);     mysqli_close($con); ?>

the above code not produce empty set. blank. doing wrong in code?

there mistake in while loop. changing value of row variable inside loop hope invalidates condition in while loop , control comes out of loop. have stored base64encoding result in different variable. 

while($row = $result->fetch_object()) { $row_encoding = base64_encode($row["image"]); $temparray = $row_encoding; array_push($resultarray, $temparray); }

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