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PHP Date Exercises : Check whether the given dates are valid or not

PHP date: Exercise-10 with Solution

Write a PHP script to check whether the given dates are valid or not?

Sample Solution:

PHP Code:

<?php
var_dump(checkdate(2, 30, 2008));
var_dump(checkdate(2, 29, 2008));
?>

Sample Output:

bool(false)                                                 
bool(true)

Flowchart :

Flowchart: Check whether a given dates is valid or not

PHP Code Editor:

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Next: Write a PHP script to get time difference in days and years, months, days, hours, minutes, seconds between two dates.

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PHP: Tips of the Day

SQL injection that gets around mysql_real_escape_string()

Consider the following query:

$iId = mysql_real_escape_string("1 OR 1=1");    
$sSql = "SELECT * FROM table WHERE id = $iId";

mysql_real_escape_string() will not protect you against this. The fact that you use single quotes (' ') around your variables inside your query is what protects you against this. The following is also an option:

$iId = (int)"1 OR 1=1";
$sSql = "SELECT * FROM table WHERE id = $iId";

Ref : https://bit.ly/32q3bJ7