AP102 2016/5/25 早上
<?php
phpinfo();
?><?php
echo "implode<br>";
echo $_POST["year"]."-".$_POST["month"]."-".$_POST["day"];
echo "<br>";
echo implode("-", $_POST);
?>
<form action="?" method="post" enctype="multipart/form-data">
Birthday:
<input type="number" name="year">-
<input type="number" name="month">-
<input type="number" name="day">
<input type="submit" value="Send">
</form>
否則使用以下輸入方式即可
<input type="date" name="date">
同一個檔案的POST會不會干擾
會！ 因為是傳到同一個資料
利用GET去區分同一個頁面的資料
<?php
if($_GET["action"]=="implode"){
echo "implode<br>";
echo $_POST["year"]."-".$_POST["month"]."-".$_POST["day"];//舊寫法
echo "<br>";
echo implode("-", $_POST);//新寫法
}
?>
<form action="?action=implode" method="post" enctype="multipart/form-data">
Birthday:
<input type="number" name="year">-
<input type="number" name="month">-
<input type="number" name="day">
<input type="submit" value="Send">
</form><?php
echo "strtolower:<br>";
echo strtolower("ABC");
echo "<br>";
echo "strtoupper:<br>";
echo strtoupper("ABC");
?>
//結果
strtolower:
abc
strtoupper:
ABC<?php
echo "strlen:<br>";
echo strlen("ABCDEFGHIJK");
echo "<br>";
?>
//結果
strlen:
11<?php
echo "substr:<br>";
echo substr("ABCDEFGHIJK",2,4);
echo "<br>";
?>
//結果（第二個數字開始取四個）
substr:
CDEF<?php
if($_GET["action"]=="substr"){
echo "substr:<br>";
echo substr($_POST["content"],0,5);
echo "<br>";
}
?>
<form action="?action=substr" method="post" enctype="multipart/form-data">
Content:<br>
<textarea name="content"></textarea><br>
<input type="submit" value="Send">
</form>
//結果
假設輸入ABCDEFG
只會取得前五個字
0開始取五個
01234假設輸入內容字元小於5則不出現…截斷表示
大於5則出現
<?php
if($_GET["action"]=="substr"){
echo "substr:<br>";
echo substr($_POST["content"],0,5);
if(strlen($_POST["content"])>5){
echo "...";
}
echo "<br>";
}
?>
//結果
輸入123
substr:
123
數入123456
substr:
12345...<?php
if($_GET["action"]=="substr"){
echo "substr:<br>";
echo "<div id='substr_show'>";
echo substr($_POST["content"],0,5);
if(strlen($_POST["content"])>5){
echo "...";
}
echo "<a href=''>(More)</a>";
echo "</div>";
echo "<div id='substr_all' style='display:none;'>".$_POST["content"]."</div>";
echo "<br>";
}
?>
<form action="?action=substr" method="post" enctype="multipart/form-data">
Content:<br>
<textarea name="content"></textarea><br>
<input type="submit" value="Send">
</form>
//結果（會先隱藏掉下方的部分）
substr:
(More)<?php
if($_GET["action"]=="substr"){
echo "substr:<br>";
echo "<div id='substr_show'>";
echo substr($_POST["content"],0,5);
if(strlen($_POST["content"])>5){
echo "...";
}
echo "<a href='javascript:show_all();'>(More)</a>";
echo "</div>";
echo "<div id='substr_all' style='display:none;'>".$_POST["content"]."</div>";
echo "<br>";
}
?>
<script>
function show_all(){
document.querySelector("#substr_show").style.display="none";
document.querySelector("#substr_all").style.display="block";
}
</script>
<form action="?action=substr" method="post" enctype="multipart/form-data">
Content:<br>
<textarea name="content"></textarea><br>
<input type="submit" value="Send">
</form>看是否有找到關鍵字
找到了輸出找到了
找不到輸出找不到
<?php
if($_GET["action"]=="substr"){
echo "substr:<br>";
if(strchr($_POST["content"],$_POST["keyword"])!=false){
echo "找到了";
}else{
echo "沒找到";
}
echo "<br>";
}
?>
<form action="?action=substr" method="post" enctype="multipart/form-data">
Keyword:<br>
<input type="text" name="keyword"><br>
Content:<br>
<textarea name="content"></textarea><br>
<input type="submit" value="Send">
</form><?php
session_start();
?>
<!doctype html>
<html>
<head>
<META charset="utf-8">
<title></title>
</head>
<body>
<?php
echo file_get_contents("21.php");
?>
</body>
</html>include (“21.php”)會執行php（不顯示）
<?php
session_start();
?>
<!doctype html>
<html>
<head>
<META charset="utf-8">
<title></title>
</head>
<body>
<?php
echo file_get_contents("21.php");//有php
echo "====";
include ("21.php");//沒有php
?>
</body>
</html>file_put_contents(“2016-05-23.txt”,”Hello~”,8)//8會一直串接，不寫會一直被覆蓋
<?php
session_start();
?>
<!doctype html>
<html>
<head>
<META charset="utf-8">
<title></title>
</head>
<body>
<?php
echo file_get_contents("21.php");//有php
echo "====";
include ("21.php");//沒有php
?>
<?php
file_put_contents("2016-05-23.txt","Hello~",8)//8會一直串接，不寫會一直被覆蓋
?>
</body>
</html>在資料夾當中新增一個count.txt然後內容輸入0
<?php
$count = file_get_contents("count.txt")+1;
file_put_contents("count.txt", $count);
echo "你是本站第".$count,"位使用者";
?><?php
$count = file_get_contents("count.txt");
if ($_SESSION["look"]!=true) {
$count++;
file_put_contents("count.txt", $count);
$_SESSION["look"]=true;
}
echo "你是本站第".$count,"位使用者";
?><?php
mkdir("2016-05-23");//建立
rmdir("2016-05-23");//刪除
?><?php
copy("2016-05-23.txt", "2016-05-24.txt");
?><?php
unlink("2016-05-24.txt");
?>假設存在則回傳1(true)
不存在回傳0(false)
<?php
echo file_exists("2016-05-23.txt");
?>echo"<br>is_dir:";
echo is_dir("1.php");//是目錄嗎？
?>
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