php basics? about Repeater print out

anderson · February 7, 2019

Hi,

For the purpose of learning, as shown in this photo, I created a repeater field "we", then a template, then a page.

But in /templates/testrepeater.php, I has some problem, the "foreach" part does not work as expected.

<html>
<body>
	<?php echo "<h1>$page->title</h1><br>"; ?>

	<? foreach($page->we as $member); ?>
		<img  src="<?php echo $member->images->url; ?>" alt="">	
		<?php echo $member->wemember; ?><br>
	<? endforeach;?>
</body>
</html>

Could anybody please help point out my error?

Thanks in advance.

jacmaes · February 7, 2019

From a quick look, I see a typo here:

<? foreach($page->we as $member); ?>

It should be:

<? foreach($page->we as $member): ?>

Notice ":" instead of ";"

adrian · February 7, 2019

You may also need to grab the ->first() image from the images field, or add another nested foreach to loop through all images, eg:

    <?php echo "<h1>$page->title</h1><br>"; ?>

    <? foreach($page->we as $member): ?>
        <? foreach($member->images as $image):
            <img src="<?php echo $images->url; ?>" alt="">    
        <? endforeach;?>    
        <?php echo $member->wemember; ?><br>
    <? endforeach;?>

bernhard · February 7, 2019

I'd recommend using adrians great tracy debugger module. Then you can easily (and instantly) see the content of your variables. It has lots of helpful information so you'll learn a lot quicker and it has the console, where you can try out things quickly and easily. See what you get by a simple dump - using the short syntax d()

anderson · February 7, 2019

Thanks so much !!!

What can I get from this:

anderson · February 7, 2019

<html>
<body>
	<?php echo "<h1>$page->title</h1><br>"; ?>

	<? foreach($page->we as $member): ?>
		<img  src="<?php echo $member->Images->url; ?>" alt="">	
		<?php echo $member->wemember; ?><br>
	<? endforeach;?>
</body>
</html>

Gideon So · February 7, 2019

Hi,

1. PHP notice is not error. Your code still valid.

2. Try change the line if displaying image to the following:

<?php echo $member->images->first()->url; ?>

Gideon

anderson · February 8, 2019

9 hours ago, Gideon So said:

Hi,

1. PHP notice is not error. Your code still valid.

2. Try change the line if displaying image to the following:

<?php echo $member->images->first()->url; ?>

Gideon

Thanks for your help.

first() is recognized as unknow function?

To make it clear, with @adrian's code, I removed everything else that's working, only kept:

    <? foreach($page->we as $member): ?>
        <? foreach($member->images as $image):
            <img src="<?php echo $images->url; ?>" alt="">    
        <? endforeach;?>    
    <? endforeach;?>

and the result output is:

we as $member): ?> images as $image):

that's always the same problem.

Really don't know what is going on.

anderson · February 8, 2019

another format:

    <? foreach($page->we as $member): ?>
        <? foreach($member->images as $image):
            echo '<img src="' . $images->url . '"  alt="">'    
        <? endforeach;?>    
    <? endforeach;?>

still similar result.

adrian · February 8, 2019

Can you show the code from the entire page?

Is it maybe a PHP short tags issue, or a character encoding issue?

Do you have PW debug mode on?

Does that code work in the Tracy Debugger console panel? Just trying to isolate it.

anderson · February 8, 2019

Thanks for fast response.

17 minutes ago, adrian said:

code from the entire page?

my last post IS the entire page of \site\templates\testrepeater.php

I'm new to all this, I didn't create any shortcut of PHP, Wordpress or anything.

21 minutes ago, adrian said:

character encoding issue?

Just tried ANSI, Unicode, UTF-8. All the same.

And yes, PW debug is ON.

Not in the Tracy Debugger console panel.

anderson · February 8, 2019

And, I've migrated my local site to a free webhosting, I don't know if it'll be easier this way, if so, please take a look:

http://tubezyx.000webhostapp.com/test-repeat/

admin login: admin

pswd:147258369

Edited February 8, 2019 by anderson
typo

bernhard · February 8, 2019

This does not help because tracy and the file editor panel do not work on this host. Also, you should never make any admin login data public, please remove it from your post, even if it is a temporary host.

Did you do (and I mean DO, not READ) the hello world tutorial? https://processwire.com/docs/tutorials/hello-worlds/

PS: I got several 502 bad gateway errors on your install, so you might have server issues that cause several problems...

zoeck · February 8, 2019

i think it's a problem with php ?

Check it with this code:

<html>
<body>
	<?php echo "<h1>$page->title</h1><br>"; ?>

	<?php foreach($page->we as $member): ?>
		<img  src="<?php echo $member->Images->url; ?>" alt="">	
		<?php echo $member->wemember; ?><br>
	<?php endforeach;?>
</body>
</html>

you are using <? ... but with newer PHP Versions, this isn't working with the standard configuration, so you should always use <?php instead of <?

anderson · February 8, 2019

20 minutes ago, zoeck said:

i think it's a problem with php ?

Check it with this code:

......

you are using <? ... but with newer PHP Versions, this isn't working with the standard configuration, so you should always use <?php instead of <?

You saved my life !!!!!!

This works:

<html>
<body>
	<?php echo "<h1>$page->title</h1><br>"; ?>

	<?php foreach($page->we as $member): ?>
			<?php foreach($member->images as $image): ?>
	            	<img  src="<?php echo $image->url; ?>" alt="">   
	        <?php endforeach;?> 		
		<?php echo $member->wemember; ?><br>
	<?php endforeach;?>
</body>
</html>

New PHP version is more tight?

And I appreciate help of everybody here, so nice!

anderson · February 8, 2019

37 minutes ago, bernhard said:

This does not help because tracy and the file editor panel do not work on this host. Also, you should never make any admin login data public, please remove it from your post, even if it is a temporary host.

OK, I'll remember that, and any Admin here please delete that info for me, guess I cann't do that on my own. And I find it hard to amend my post, only get a short window of one minute or so.

And, yes, I DID the hello world tuts. Also I'm watching some youtube tuts by Ryan. Hope I could learn fast.

Thanks.

bernhard · February 8, 2019

You can also just change your login credentials or take the site offline ?

anderson · February 8, 2019

Just now, bernhard said:

You can also just change your login credentials or take the site offline ?

Oh, good to know. ?

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