html - How do I use PHP to populate a second select-tag with options based on the option selected in the first select-tag? -

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i draw options second select-tag database.

thanks.

you have use ajax perform without page submit.

or submit page make action self (the same php).

check if there $_post[select1value]

then populate db in second select

<select2> <?php if( ($_post['submit'])  && ($_post['select1']) ) { ?>  <option1> of select2</option>  <? } ?>

thats it.

but ajax nice if wan use


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