What common issue can occur when uploading images via POST method in PHP?

One common issue when uploading images via POST method in PHP is the "upload_max_filesize" and "post_max_size" limits set in php.ini. If the uploaded file exceeds these limits, the upload will fail. To solve this issue, you can adjust these limits in php.ini or use the "ini_set" function in your PHP script to increase the limits temporarily. 

// Adjust upload_max_filesize and post_max_size limits
ini_set('upload_max_filesize', '20M');
ini_set('post_max_size', '25M');

Keywords

file upload POST method PHP file size limit file type validation

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