本文实例讲述了php根据生日计算年龄的方法。分享给大家供大家参考。具体如下:
<?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 $age;
}
echo birthday(\'1986-07-22\');
?>
再来个简单点的,感觉没有上面的高大上
<?php
echo birthday(\"1989-01-25\");
function birthday2($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;
}
希望本文所述对大家的php程序设计有所帮助。
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