Question

How to use checkdate() function to validate date formed in PHP

Answer 1

// checkdate( $month, $day, $year );

var_dump(checkdate(3, 22, 2016));
echo "<br />";
var_dump(checkdate(2, 29, 2016));
echo "<br />";
var_dump(checkdate(2, 29, 2017));

/*
run:
   
bool(true)
bool(true)
bool(false) 
      
*/

 

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Answer 2

// checkdate( $month, $day, $year );

if (checkdate(3, 22, 2016))
    echo "date ok <br />";

/*
run:
   
date ok 
      
*/

 

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