round($n) 四捨五入
ceil($n) 無條件進位
floor($n) 無條件捨去
php裏面轉換大小寫strtolower() , strtoupper()
mysql裏面轉換大小寫 ucase() , lcase()
如果需要引用某外部網頁的資料，可以用下面函式來取得該頁面的資料:
echo file_get_contents('htp://url_of_the_iframe/content.php');
透過php本文實現POST:
function Post($url, $post = null) {
$context = array();
if (is_array($post)) {
ksort($post);
$context['http'] = array (
'timeout'=>60,
'method' => 'POST',
'content' => http_build_query($post, '', '&'),
);
}
$result = file_get_contents($url, false, stream_context_create($context));
if ($result){
return $result;
}else{
printf("Connection busy! Please Try letter");die();
}
}
$data = array (
'name' => 'test',
'email' => 'test@gmail.com',
'submit' => 'submit',
);
echo Post($url, $data);
透過php本文實現GET:
function Get($url) {
$opts = array(
'http'=>array(
'method'=>"GET",
'timeout'=>1,
)
);
$context = stream_context_create($opts);
$result = file_get_contents($url, false, $context);
if ($result){
return $result;
}else{
printf("Connection busy! Please Try letter");die();
}
}
echo Get($url);
針對上下月份取得時的問題，透過下方函式可以避免 ($sign:0->下個月 1->上個月 / $var:區間 / $format: 輸出格式 )
function GetMonth($sign="1",$var=1,$format="Y-m") {
$tmp_date=date("Ym");
$tmp_year=substr($tmp_date,0,4);
$tmp_mon =substr($tmp_date,4,2);
$tmp_nextmonth=mktime(0,0,0,$tmp_mon+$var,1,$tmp_year);
$tmp_forwardmonth=mktime(0,0,0,$tmp_mon-$var,1,$tmp_year);
if($sign==0){
return $fm_next_month=date($format,$tmp_nextmonth);
}else{
return $fm_forward_month=date($format,$tmp_forwardmonth);
}
}
