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所以即時學習PHP和試圖使一個PHP的網頁點擊計數器。現在我已經根據我的理解編寫了這些代碼。問題是,當我在終端上運行程序時,我得到了正確的答案(輸出如我所料)。當我在html頁面上進行回顯時,它不起作用。這裏是代碼php文件讀取和寫入
<html>
<body>
<?php
#open the file (assuming this file already exists with only 0 in it)
$file = 'test.txt';
$file = fopen($file,"r");
$temp = fread($file, 1024);
fclose($file);
#save the number 0 (initial counter to $temp) and delete it)
$file = 'test.txt';
unlink($file);
#open the file (this line just creates the file to write)
$file = fopen("test.txt","w");
fclose($file);
#increase the counter by a number (10 for testing)
$temp = (int)$temp + 10;
$file=fopen("test.txt","w");
fwrite($file,"$temp \n")
fclose($file);
#the file only contains a number ($temp - the final counter)
echo "<h1>$temp<h1>"; #this outputs the correct counter in terminal but only outputs 10 on html page. ?????
?>
</body>
</html>
你刷新了嗎? –
是的,它出於某種原因始終輸出10。雖然終端輸出每次都能正確輸出。 – user2055171
你的寫函數不工作,var_dump fwrite函數來找出它的工作與否。可能是創建新文件時的權限問題,您可能需要將其修改爲777 –