How to compare two date and validate fields

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I need to compare two date fields in the same form, and the difference between them has to be over 18 years, otherwise an error must be issued.

<form>

    <input type="date" name="datanascimento">
    <input type="date" name="dataIngresso">

    <input type="submit" value="Enviar">

</form>
php javascript html5 ajax

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2 answers

1

Good night, use the function diff of PHP.

    $data1 = new DateTime( '2012-11-11' );
    $data2 = new DateTime( '1994-01-01' );

    $intervalo = $data1->diff( $data2 );

    echo "Intervalo é de {$intervalo->y} anos, {$intervalo->m} meses e {$intervalo->d} dias";

0

Gives an ID to each of the dates, opens a script tag, for JS, calls the ID’s and makes the calculation with them, uses Document.getElementById to catch the ids.

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