PHP return 平面文件中 $title 变量的值
PHP return value of $title variable from a flat file
我正在编写一个脚本,其中 returns 位于 php
文件顶部的 $title 变量的文字值。在脚本的末尾,我使用 rtrim()
删除字符串末尾的引号和分号,但是它们不会 trim。我的 php
文件的顶部如下所示:
<php
$title="Test Title";
$description="Test Description";
?>
当我回显字符串时,我得到:
Test Title;"
这是我的代码。谁能告诉我我做错了什么?我什至欢迎提出任何改进建议:
<?php
//returns the value of the $title variable from the top of a php file.
$file = fopen("test.php", "r") or die("Unable to open file!");
$count = 0;
while ($count < 10) { //only check the first 10 lines
$line = fgets($file);
$isTitle = strpos($line, "itle="); //check if $title is part of the string
if ($isTitle !== false) {
$fullTitle = explode("=\"", $line); //explode it into two on =" which also trims the first quote
$untrimmedTitle = $fullTitle[1]; //save the second part of the array as a string since rtrim needs a string
$title = rtrim($untrimmedTitle, "\";"); //trim the quote and semi-colon from the string
$count = 10; //push the count up to 10 so it ends the loop
}
$count++;
}
echo $title; //show the title
fclose($file);
?>
行中:
$title = rtrim($untrimmedTitle, "\";");
您正在从字符串中 triming "
和 ;
。你想要 trim '
和 ;
:
$title = rtrim($untrimmedTitle, "\';");
编辑:
为什么不这样做:
include "test.php";
echo $title;
?
将 $title = rtrim($untrimmedTitle, "\";");
更改为 $title = rtrim(trim($untrimmedTitle), "\";");
。会好的。
在 $untrimmedTitle 的末尾有一个中断,如 \n
。
或者您可以这样做:
$title = rtrim($untrimmedTitle, "\";\n");
我正在编写一个脚本,其中 returns 位于 php
文件顶部的 $title 变量的文字值。在脚本的末尾,我使用 rtrim()
删除字符串末尾的引号和分号,但是它们不会 trim。我的 php
文件的顶部如下所示:
<php
$title="Test Title";
$description="Test Description";
?>
当我回显字符串时,我得到:
Test Title;"
这是我的代码。谁能告诉我我做错了什么?我什至欢迎提出任何改进建议:
<?php
//returns the value of the $title variable from the top of a php file.
$file = fopen("test.php", "r") or die("Unable to open file!");
$count = 0;
while ($count < 10) { //only check the first 10 lines
$line = fgets($file);
$isTitle = strpos($line, "itle="); //check if $title is part of the string
if ($isTitle !== false) {
$fullTitle = explode("=\"", $line); //explode it into two on =" which also trims the first quote
$untrimmedTitle = $fullTitle[1]; //save the second part of the array as a string since rtrim needs a string
$title = rtrim($untrimmedTitle, "\";"); //trim the quote and semi-colon from the string
$count = 10; //push the count up to 10 so it ends the loop
}
$count++;
}
echo $title; //show the title
fclose($file);
?>
行中:
$title = rtrim($untrimmedTitle, "\";");
您正在从字符串中 triming "
和 ;
。你想要 trim '
和 ;
:
$title = rtrim($untrimmedTitle, "\';");
编辑:
为什么不这样做:
include "test.php";
echo $title;
?
将 $title = rtrim($untrimmedTitle, "\";");
更改为 $title = rtrim(trim($untrimmedTitle), "\";");
。会好的。
在 $untrimmedTitle 的末尾有一个中断,如 \n
。
或者您可以这样做:
$title = rtrim($untrimmedTitle, "\";\n");