This article mainly introduces the method of operating dates and strings in PHP. Interested friends can refer to it. I hope it will be helpful to everyone.
The example in this article describes the method of calculating age based on birthday in PHP. The details are as follows:
<?php
function birthday($birthday){
$age = strtotime($birthday);
if($age === false){
return false;
}
list($y1,$m1,$d1) = explode("-",date("Y-m-d",$age));
$now = strtotime("now");
list($y2,$m2,$d2) = explode("-",date("Y-m-d",$now));
$age = $y2 - $y1;
if((int)($m2.$d2) < (int)($m1.$d1))
$age -= 1;
return $age;
}
echo birthday('1986-07-22');
?>Let’s take a simpler one, which doesn’t feel as high as the above
<?php
echo birthday("1989-01-25");
function birthday2($birthday){
list($year,$month,$day) = explode("-",$birthday);
$year_diff = date("Y") - $year;
$month_diff = date("m") - $month;
$day_diff = date("d") - $day;
if ($day_diff < 0 || $month_diff < 0)
$year_diff--;
return $year_diff;
}Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.
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