How is urlencode() used?

I use it like this, but it doesn’t seem to work. It says $name in the fourth line is undefined or something
$name='A&B C '
$name=urlencode($name) ;
echo 'http://www.cndn.cc/X1.php?name=$name';
?>

Reply content:

I use it like this, but it doesn’t seem to work. It says $name in the fourth line is undefined or something
$name='A&B C '
$name=urlencode($name) ;
echo 'http://www.cndn.cc/X1.php?name=$name';
?>

1.$name='A&B C ' // Less semicolons
2. To output variables in a string, double quotes are required

The following is the correct code:

<code>$name='A&B C ';
$name=urlencode($name);
echo "http://www.cndn.cc/X1.php?name=$name";</code>

<code><?php
$name='A&B C ';
$name=urlencode($name);
echo 'http://www.cndn.cc/X1.php?name='.$name;
?></code>

Dude, you are missing a semicolon in the second line.

Furthermore, you want to output the value of $name in the last line, so you cannot use single quotes, you have to use double quotes.

<code><?php
$name='A&B C ';  //你太粗心大意了，这里的分号漏掉了！
$name=urlencode($name);
echo 'http://www.cndn.cc/X1.php?name=' . $name; //单引号中的变量是不会被解析的，要么用双引号，要么用这种方式
?></code>

Pay more attention to grammar when writing code in the future. You should not make such low-level mistakes.

<code>$name='A&B C ';
$name=urlencode($name);
echo "http://www.cndn.cc/X1.php?name={$name}";
echo "http://www.cndn.cc/X1.php?name=$name"; //个人不建议这种
echo 'http://www.cndn.cc/X1.php?name=' . $name;</code>

//The solution is the problem of semicolons and double quotes mentioned above