Comments (4)
The next template's syntax was wrong.
{{ b.{{ a.x }} }}
You can use nested "for" tag instead of nested "{{ }}" tag like below or prepare ordered $b array in php code.
<ul>
{% for a in arr %}
{% for i, b_val in b %}
{% if i == a.x %}
<li>{{ b_val }}</li>
{% endif %}
{% endfor %}
{% endfor %}
</ul>
from h2o-php.
Thanks superdaigo. The example you provided works, however it is extremely inefficient (O(n^2): nested loop, can't break after item found).
Here's what I'm looking for in PHP for comparison:
foreach ($arr as $a) {
echo $b[$a['x']];
}
from h2o-php.
Hi, clphillips.
It's true that the nested "for loop" is inefficient and deep nest was evil.
If you worry about the efficiency, here is two solutions.
-
Create ordered variables before render to template.
$arr = array( array('x' => 0), array('x' => 1), array('x' => 2), array('x' => 3), ); $b = array(1, 2, 3, 4); // prepare $b_ordered = array(); foreach ($arr as $a) { $b_ordered[] = $b[$a['x']]; } // render h2o->render(array( 'b_new' => $b_ordered ));
{% for b_val in b_new %} {{ b_val }} {% endfor %}
-
Create custom tags or extensions.
... It's not easier than above and probably too much ...
The "h2o" is fast and simple template engine. I think something complex should be done in PHP code.
from h2o-php.
Thanks again superdaigo.
You solution in #1 is exactly what I did as a work around. I'm still concerned with it, because if you analyze the run time (PHP + h2o) it's still a nested loop (O(n^2)). However, it gets the job done and keeps the template simple and easy to understand (which is why we chose h2o to begin with). :)
from h2o-php.
Related Issues (20)
- Issue with cache loader HOT 2
- InvalidArgumentException for-loop over empty arrays
- (Question) Method invoking on object variable? HOT 2
- Extending FilterCollection complains of static functions HOT 1
- |
- Why loop instead of forloop?
- [Warning] In read_cache after calling loadTemplate HOT 1
- Basic HTML & Text breaking h2o templates HOT 2
- Variables should be able to start with underscore (_)
- i18n fails to replace empty variables in blocktrans
- i18n blocktrans can not handle quotes HOT 1
- Filters in if Tags? HOT 2
- eval like feature
- Feature Request: Don't process tag HOT 1
- Combine Tags result with Filters
- Can $context be acessible in Template? HOT 5
- Add composer.json HOT 1
- IF higher or equal
- PHP7 compliance HOT 5
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from h2o-php.