如何在循环外存储变量

Question

I have got a problem with the variable outside the loops. I want to store the variable of $programme_title from the foreach $time_arr loop shown below, and get back a short list of strings like this:

Paid Programming The Mentalist - Black HeartsAnthony Bourdain Parts Unknown - Russia
NFL Live StosselBad Dog! - Bad to the BoneHouse - Son of Coma GuyCutlery Corner Wild
The Real Housewives of Atlanta - Secrets RevealedThe Real Housewives of Atlanta - Secrets Revealed
The Real Housewives of Atlanta - Secrets Revealed The Real Housewives of Atlanta - Secrets Revealed 
The Real Housewives of Atlanta - Secrets Revealed The Real Housewives of Atlanta - Secrets Revealed
The Real Housewives of Atlanta - Secrets RevealedThe Real Housewives of Atlanta - Secrets Revealed

When I used this code:

 foreach($programme_arr as $programme)
  {
    $programme1 = $programme->item(0)->nodeValue;
    $programme_title = $programme1;
  }
  echo $programme_title;

Or try this:

foreach($programme_arr as $programme)
{
  $programme1 = $programme->item(0)->nodeValue;
  $programme_title = $programme1;
}


foreach($time_arr as $time)
{
   echo $programme_title;
}

It doesn't work. So, I tried this code:

foreach($programme_arr as $programme)
{
  $programme1 = $programme->item(0)->nodeValue;
  $programme_title = $programme1;
  echo $programme_title;
}

And got back this large list of string:

    Step Up 3The 700 Club The Fresh Prince of Bel-Air - Not With My Cousin You Don't
The Fresh Prince of Bel-Air - Viva Lost Wages The Fresh Prince of Bel-Air - There's the Rub
The Fresh Prince of Bel-Air - There's the RubSummer Sexy With T25!Dr. Ordon's Secret!
The 700 ClubAirbrushed BeautySleep Better!Joseph PrinceLife Today With James Robison - SMF Special 1
Joyce Meyer: Enjoying Everyday LifeShaun T's Focus T25That '70s Show - The Velvet Rope
That '70s Show - Laurie and the ProfessorThat '70s Show - HalloweenThat '70s Show - Van Stock

and so on...

Can you please tell me how I can store the variable of $programme_title in the foreach $time_arr to allow me to print the list of strings like on above?

Answer 1

This is an issue with variable scope. Your variable has to exist outside the loop if you want to access it when the loop is comple. If you do this:

$programme_title = NULL;
foreach($programme_arr as $programme) {
    $programme1 = $programme->item(0)->nodeValue;
    $programme_title = $programme1;
}

echo $programme_title;

You will echo the title of the last item in $programme_arr. If you want to get all the titles, need to put them in an array:

$titles = array();
foreach($programme_arr as $programme) {
    $programme1 = $programme->item(0)->nodeValue;
    $titles[] = $programme1;
}

print_r($titles);