strpos无法处理html标签[关闭]

Question

I have this code and for some reason strpos is not returning the positition of the title and /title.

$haystack = "<title> PHP Coding </title>";
$needle = "<title>";
//1. print the position of the $needle in $haystack
echo strpos( $haystack,  $needle);


$newneedle = "</title>";
//2. print the position of $newneedle in $haytack
echo strpos( $haystack,  $needle);

Answer 1

It works just fine if you use the correct variable name in the second call:

$haystack = "<title> PHP Coding </title>";
$needle = "<title>";
//1. print the position of the $needle in $haystack
echo strpos( $haystack,  $needle);


$newneedle = "</title>";
//2. print the position of $newneedle in $haytack
echo strpos( $haystack,  $newneedle);