How can imagecreatefromstring() be utilized to work with images stored in Blobs in PHP?

When working with images stored in Blobs in PHP, you can use the imagecreatefromstring() function to create an image resource from the binary data stored in the Blob. This function takes a string containing the image data as input and returns an image resource that can be manipulated or displayed. 

// Assuming $blobData contains the binary data of the image stored in the Blob

// Create an image resource from the Blob data
$image = imagecreatefromstring($blobData);

// Check if the image resource was created successfully
if ($image !== false) {
    // Display or manipulate the image as needed
    // For example, output the image to the browser
    header('Content-Type: image/jpeg');
    imagejpeg($image);
    
    // Free up memory by destroying the image resource
    imagedestroy($image);
} else {
    echo 'Failed to create image resource from Blob data';
}

Keywords

imagecreatefromstring Blobs PHP image manipulation data conversion

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