Age

[ecabrera]

Warning: mktime() expects parameter 4 to be long, string given in C:\xampp\htdocs\php\age.php on line 8

this is what i get

 

<?php

if(isset($_POST['submitbtn'])){
$month = $_POST['month'];
$day = $_POST['day'];
$year = $_POST['year'];

$birthday = mktime(0,0,0,$month,$day,$year);
$diff = time() - $birthday;

$age = floor($diff / 31556926);

echo $age.' Years Old';
}
?>

 

what im i doing wrong

[l0gic]

Can you please put this at the top of that code and post the results:

 

echo $_POST['month'] . " - " . $_POST['day'] . " - " . $_POST['year'];
die();

[ecabrera]

Month - Day - Year

[l0gic]

So I believe you're passing the wrong data through your form on the previous page.

 

Should be sending through something like: 05 - 29 - 1983

[ecabrera]

well i do im say when there is nothing  there is no month or day or year and i just press submit i  get that

[l0gic]

Well, you either need to change what the form is sending when it's blank before it sends. Or check what it's sending is a number when your above code recieves it.

 

One solution:

...
if(isset($_POST['submitbtn']) && is_int($_POST['month']) && is_int($_POST['day']) && is_int($_POST['year'])){
  // do stuff
}else {
  // don't do stuff
}
...

[ecabrera]

ok thanks but y doesnt this work

 

if(isset($month) && isset($day) && isset($year) && !empty($month) && !empty($day) && !empty($year)){	

$birthday = mktime(0,0,0,$month,$day,$year);
$diff = time() - $birthday;

$age = floor($diff / 31556926);

echo $age.' Years Old';
}else 
	echo"Please enter your Bday";
}

[marcus]

Why don't you tell us the error you're getting

[ecabrera]

Warning: mktime() expects parameter 4 to be long, string given in C:\xampp\htdocs\php\age.php on line 8

[marcus]

Can you show us your HTML?

[ecabrera]

<form action="age.php" method="post">
Month:<select name="month">
    <option>Month</option>
<option value="1">January</option>
<option value="2">February</option>
<option value="3">March</option>
<option value="4">April</option>
<option value="5">May</option>
<option value="6">June</option>
<option value="7">July</option>
<option value="8">August</option>
<option value="9">September</option>
<option value="10">October</option>
<option value="11">November</option>
<option value="12">December</option>
</select>
Day:<select name="day">
<option>Day</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
<option value="11">11</option>
<option value="12">12</option>
<option value="13">13</option>
<option value="14">14</option>
<option value="15">15</option>
<option value="16">16</option>
<option value="17">17</option>
<option value="18">18</option>
<option value="19">19</option>
<option value="20">20</option>
<option value="21">21</option>
<option value="22">22</option>
<option value="23">23</option>
<option value="24">24</option>
<option value="25">25</option>
<option value="26">26</option>
<option value="27">27</option>
<option value="28">28</option>
<option value="29">29</option>
<option value="30">30</option>
<option value="31">31</option>
</select>
Year:<select name="year">
    <option>Year</option>
    <option value="2011">2011</option>
    <option value="2010">2010</option>
    <option value="2009">2009</option>
    <option value="2008">2008</option>
    <option value="2007">2007</option>
    <option value="2006">2006</option>
    <option value="2005">2005</option>
    <option value="2004">2004</option>
    <option value="2003">2003</option>
    <option value="2002">2002</option>
    <option value="2001">2001</option>
    <option value="2000">2000</option>
    <option value="1999">1999</option>
    <option value="1998">1998</option>
    <option value="1997">1997</option>
    <option value="1996">1996</option>
    <option value="1995">1995</option>
    <option value="1994">1994</option>
    <option value="1993">1993</option>
    <option value="1992">1992</option>
    <option value="1991">1991</option>
    <option value="1990">1990</option>
    <option value="1989">1989</option>
    <option value="1988">1988</option>
    <option value="1987">1987</option>
    <option value="1986">1986</option>
    <option value="1985">1985</option>
    <option value="1984">1984</option>
    <option value="1983">1983</option>
    <option value="1982">1982</option>
    <option value="1981">1981</option>
    <option value="1980">1980</option>
    <option value="1979">1979</option>
    <option value="1978">1978</option>
    <option value="1977">1977</option>
    <option value="1976">1976</option>
    <option value="1975">1975</option>
    <option value="1974">1974</option>
    <option value="1973">1973</option>
    <option value="1972">1972</option>
    <option value="1971">1971</option>
    <option value="1970">1970</option>
    <option value="1969">1969</option>
    <option value="1968">1968</option>
    <option value="1967">1967</option>
    <option value="1966">1966</option>
    <option value="1965">1965</option>
    <option value="1964">1964</option>
    <option value="1963">1963</option>
    <option value="1962">1962</option>
    <option value="1961">1961</option>
    <option value="1960">1960</option>
    <option value="1959">1959</option>
    <option value="1958">1958</option>
    <option value="1957">1957</option>
    <option value="1956">1956</option>
    <option value="1955">1955</option>
    <option value="1954">1954</option>
    <option value="1953">1953</option>
    <option value="1952">1952</option>
    <option value="1951">1951</option>
    <option value="1950">1950</option>
    <option value="1949">1949</option>
    <option value="1948">1948</option>
    <option value="1947">1947</option>
    <option value="1946">1946</option>
    <option value="1945">1945</option>
    <option value="1944">1944</option>
    <option value="1943">1943</option>
    <option value="1942">1942</option>
    <option value="1941">1941</option>
    <option value="1940">1940</option>
    <option value="1939">1939</option>
    <option value="1938">1938</option>
    <option value="1937">1937</option>
    <option value="1936">1936</option>
    <option value="1935">1935</option>
    <option value="1934">1934</option>
    <option value="1933">1933</option>
    <option value="1932">1932</option>
    <option value="1931">1931</option>
    <option value="1930">1930</option>
    <option value="1929">1929</option>
    <option value="1928">1928</option>
    <option value="1927">1927</option>
    <option value="1926">1926</option>
    <option value="1925">1925</option>
    <option value="1924">1924</option>
    <option value="1923">1923</option>
    <option value="1922">1922</option>
    <option value="1921">1921</option>
    <option value="1920">1920</option>
    <option value="1919">1919</option>
    <option value="1918">1918</option>
    <option value="1917">1917</option>
    <option value="1916">1916</option>
    <option value="1915">1915</option>
    <option value="1914">1914</option>
    <option value="1913">1913</option>
    <option value="1912">1912</option>
    <option value="1911">1911</option>
    <option value="1910">1910</option>
    <option value="1909">1909</option>
    <option value="1908">1908</option>
    <option value="1907">1907</option>
    <option value="1906">1906</option>
    <option value="1905">1905</option>
    <option value="1904">1904</option>
    <option value="1903">1903</option>
    <option value="1902">1902</option>
    <option value="1901">1901</option>
    <option value="1900">1900</option>
</select><br>
<input type="submit" name="submitbtn" />
</form>

[marcus]

if($month == "Month" || $day == "Day" || $year == "Year"){
    echo "Please select the month, day and year you were born!";
}else {
    if(checkdate($month, $day, $year)){
        // valid birthday
    }else {
        // invalid birthday
    }
}

 

I'm sure you can figure it out from there.

[ecabrera]

mgallforever thanks it works does the checkdate check the current date

[marcus]

checkdate() checks to see if the date is valid. It would return false if you tried putting in the birthday February 29, 2001. Obviously since 2001 wasn't a leap year, but if you tried February 29, 2012, it will return true. Other invalid test cases would be April 31, <any year> because April only has 30 days.

[ecabrera]

oh say there birthday is a leap year would i have to change my script

[marcus]

No, checkdate will know if the date is valid regardless. If you put in checkdate(2, 29, 2012) it will return true, but if you put in checkdate(2,29,2011) it will return false.

[ecabrera]

Thanks alot