String Replacement Help

[MoFish]

Hi,

I have some html stored in a variable called $html

Inside this $html variable I have the following content {% snippet "footer" %}

I would like to find all instances of this tag in the $html and replace it with <x-snip name="footer" />

Could anyone advise me on how this would be best achieved?

Thank you,

MoFish

--

Ideally this would work for any number of these custom tags e.g.

{% snippet "footer" %} and {% snippet "header" %} would become <x-snip name="footer" /> and <x-snip name="header" />

[gw1500se]

What have your tried? Post the code here (use the code icon(<>) in the top menu and specify PHP. If you don't know where to start read this.

[MoFish]

$success = preg_match_all("/{% snippet '(.*?)' %}/i", $html, $results);
if ($success)
{
  print_r($results);
}

Not very far; i got as far as finding the lines of code in the html.

 

[Barand]

Try

$html2 = str_replace( ['{% snippet ', '%}'], ['<x-snip name=', '/>'], $html);

 

[MoFish]

@BarandThank you very much; that is exactly what I was looking for and works perfectly. Quick question:

Is there a more elegant way to do multiple replacements? The below code does work; but looks a little unwealdy.

$html = str_replace( ['{% snippet ', '%}'], ['<x-snippet name=', '/>'], $page->template->source);
$html = str_replace( ['{% collection ', '%}'], ['<x-collection name=', '/>'], $html);
$html = str_replace( ['{% setting ', '%}'], ['<x-setting name=', '/>'], $html);

 

[Barand]

str_replace takes an array of search string and a corresponding array of replacement strings, so...

$source = '
    {% snippet "header" %}
    yada yada
    {% setting "X" %}
    yada yada
    {% collection "stamps" %}
    blah blah
    {% snippet "footer" %}
    ';

$html = str_replace( [  '{% snippet ', 
                        '{% collection ', 
                        '{% setting ', 
                        '%}'
                     ], 
                     [  '<x-snippet name=',
                        '<x-collection name=',
                        '<x-setting name=',
                        '/>'
                     ], 
                     $source );

echo '<pre>' . htmlentities($html) . '</pre>';

Giving...

    <x-snippet name="header" />
    yada yada
    <x-setting name="X" />
    yada yada
    <x-collection name="stamps" />
    blah blah
    <x-snippet name="footer" />

 

[MoFish]

@BarandThank you very much.

[MoFish]

@Barand Sorry to bother you.

Everything was going great until I came across the last couple tags I needed to replace which were not self closing like the others (example 4 and example 5 below) which caused issues.

Can you think of a way around this problem? Or is there some regex solution which can pick out the first and last parts whilst skipping the word in the quotes? 🤢

{% snippet name="hello1" %}
// OK
<x-snippet name="hello1" />

{% setting name="hello2" %}
// OK
<x-setting name="hello2" />

{% collection name="hello3" %}
// OK
<x-collection name="hello3" />

{% extend "boom" %}
// Issue with />
<x-template name="boom">
  
{% endextend %}
// Issue with />
<x-template>

Code

$source = "{% snippet name='hello1' %} {% setting name='hello2' %} {% collection name='hello3' %} {% extend 'boom' %} {% endextend %}";
$html = str_replace([
    '{% snippet ', 
    '{% collection ', 
    '{% setting ', 
    '{% extend ', 
    '{% endextend ', 
    '%}'
], 
[ 
    '<x-snippet name=',
    '<x-collection name=',
    '<x-setting name=',
    '<x-template name=',
    '</x-template ',
    '/>'
], 
$source);
dump($html);

Result (see areas in red which are incorrect tags)

Edited March 28, 2022 by MoFish

[Barand]

As far as I know, self closing tags have been consigned to history and are no longer required. Just use ">" instead of "/>"

[MoFish]

@BarandI tried that, It look's like laravel components which im using to render them out; need the trailing /> in order to work correctly 😠

Can some regex magic be done in this scenario or is str_replace the way forward?

Thanks so much for your help.

Edited March 28, 2022 by MoFish

[ginerjm]

$result = str_replace(['abc','def','xyz'], ['ABC', 'DEF', 'XYZ'], $string);

The above will change "abc, def, xyz" to:   "ABC, DEF, XYZ";

My $.02.   Str_replace will do an exact replacement of literal strings of characters.  This is regardless of whether they are 'tags' or not.

Edited March 28, 2022 by ginerjm

[MoFish]

@ginerjm I think that's the problem; I'm trying to treat them all the same when they probably should be a little more unique. They slightly vary which is throwing me.

{% snippet 'hello' %} to be <x-snippet name="hello" /> with a self closing tag

{% extend 'boom' %} to be <x-template name="boom"> without a self closing tag

{% endextend %} with the self closing tag </x-template>

Edited March 28, 2022 by MoFish

[ginerjm]

Since one fix has nothing to do with another one I"m not sure what your problem is.  You are simply trying to change string x to string y.  Where's the confusion?  And as pointed out already if these are all HTML tags then you don't need the /> close nor the </ you are using as an opening tag perhaps.