Questions about PHP dynamic modification of form text box attributes

Questions about PHP dynamic modification of form text box attributes are as follows. ------ connected database -------------- & lt; here is a loop statement & gt; & lt; formaction = & quot; method = & quot; post & quot; name = & quot; & lt ;? Phpecho questions about PHP dynamic modification of form text box attributes
Example.
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I want to add the readonly attribute to the text box and hide the submit button when values in the data table have values.
Please kindly advise.

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This is easy to understand and I will not optimize the code.

PHP code

    
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Solution 11111111111111111 on the second floor