PHP函数获取页面标题

Question

I want to get my website page title through a function

First I get the Page Name from a function...

function pagetitle() {
global $th, $ta, $tp, $ts, $tc; // <---- Getting the variable value from outside function
global $bl, $qt;
$tit = ucfirst(pathinfo($_SERVER['PHP_SELF'], PATHINFO_FILENAME));
if($tit == "Index") {
    echo $th;
}
elseif($tit == "About-us"){
    echo $ta;
}
elseif($tit == "Projects"){
    echo $tp;
}
elseif($tit == "Services"){
    echo $ts;
}
elseif($tit == "Contact-us"){
    echo $tc;
}
elseif($tit == "Blog"){
    echo $bl;
}
elseif($tit == "Quotation"){
    echo $qt;
}

}

Then I tried to get the page title in the format of PageName | PageTitle or PageTitle | PageName...

function getOrg_title(){
$tit = "";
$block = " | ";
global $sl;
$org = $sl['app_org'];
if($sl['title_before'] === 'yes'){
    $tit = $org.$block.\pagetitle(); //<----- This should be like "Raj | This is my website"
}  else {
    $tit = \pagetitle().$block.$org; //<----- This should be like "This is my website | Raj"
}
echo $tit;
}

But not happening...

$tit = $org.$block.\pagetitle(); //<----- Output is "This is my websiteRaj |"

And

$tit = \pagetitle().$block.$org; //<----- Output is "This is my website | Raj"

What should I do ?

Answer 1

You expect pagetitle() to return the page's title, but instead in your code you use echo .
echo will print out the title to the client rather than return it to the caller.

So change you echo $...; to return $...; and do echo pagetitle(); whereever you use it directly.

If this can not be done, you could extend your function to

pagetitle($echo = true)
{
    // ...
    if(/* ... */) {
        $ret = $th;
    } elseif(/* ... */) {
        $ret = ...;
    } elseif(/* ... */) {
        $ret = ...;
    }
    // And so on ...

    if($echo)
        echo $ret;

    return $ret;
}

Now in your wrapper function call pagetitle(false) to prevent the echo and still get the title from it.

---

About the backslash: \\pagetitle()
The backslash is the namespace separator . Since you are not using namespacing here, all functions will be on the root namespace .
In this case - if you are using PHP 5.3 or above - you can use it or leave it out.