Analysis of Error Types of Upload File Printing Errors in PHP

When you use $_FILES to upload files, you can use the $_FILES["file"]["error"] To determine whether there is an error in file uploading. $_FILES["file"]["error"] The corresponding error code is returned:

UPLOAD_ERR_OK

Its value is 0, no errors occurred, and the file was uploaded successfully.

UPLOAD_ERR_INI_SIZE

Its value is 1, and the uploaded file exceeds that in php. ini upload_max_filesize Gets or sets the value restricted by the.

UPLOAD_ERR_FORM_SIZE

With a value of 2, the uploaded file size exceeds the value specified by the MAX_FILE_SIZE option in the HTML form.

UPLOAD_ERR_PARTIAL

Its value is 3, and only part of the file is uploaded.

UPLOAD_ERR_NO_FILE

Its value is 4, and no files are uploaded.

UPLOAD_ERR_NO_TMP_DIR

With a value of 6, the temporary folder could not be found. PHP 4.3. 10 and PHP 5.0. 3 were introduced.

UPLOAD_ERR_CANT_WRITE

Its value is 7, and the file write failed. PHP 5.1. 0 was introduced.

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