86 lines
2.4 KiB
Markdown
86 lines
2.4 KiB
Markdown
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# Control structure - Comparisons
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Most control structures used within PHP view templates are supported natively in Picea.
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The goal for this project always has been to not loose original feature while removing some limitations with PHP's original templating syntax.
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## Comparison using `if` / `then` / `else` / `elseif` / `endif`
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Comparisons works the same way as using PHP's alternative syntax.
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This is also how they are rendered in the compilation process.
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**[PICEA]** So, using this code:
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```html
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{% php $search = 'Pack my box with five dozen liquor jugs' %}
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{% if strpos($search, 'beer') !== false %}
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<span>Found 'beer' into {{ $search }} !</span>
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{% elseif strpos($search, 'liquor') !== false %}
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<span>Found 'liquor' into {{ $search }} !</span>
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{% else %}
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<b>Neither 'beer' or 'liquor' were found in {{ $search }}</b>
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{% endif %}
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```
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**[PHP]** Would yield:
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```php
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<?php $search = 'Pack my box with five dozen liquor jugs'; ?>
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<?php if (strpos($search, 'beer') !== false): ?>
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<span>Found 'beer' into <?php echo htmlspecialchars((string) $search, 3, 'UTF-8', true) ?> !</span>
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<?php elseif (strpos($search, 'beer') !== false): ?>
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<span>Found 'liquor' into <?php echo htmlspecialchars((string) $search, 3, 'UTF-8', true) ?> !</span>
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<?php else: ?>
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<b>Neither 'beer' or 'liquor' were found in <?php echo htmlspecialchars((string) $search, 3, 'UTF-8', true) ?></b>
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<?php endif ?>
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```
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And then, the code would be runned through PHP's native `include` mechanic.
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## Comparison using `switch` / `case` / `break` / `endswitch`
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Using switches within HTML in plain PHP can be quite cumbersome because of it's limitation
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disallowing any output (including whitespace) between it's statement.
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Picea will allow some more complex (and readable) switches within your views.
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**[PICEA]** So, using this code:
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```php
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{% php $selected = random_int(0,5) %}
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{% switch $selected %}
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{% case 1 %}
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{{ "One person selected" }}
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{% break %}
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{% case 2 %}
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{% default %}
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{{ "Multiple person ($selected) selected" }}
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{% break %}
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{% endswitch %}
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```
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**[PHP]** Would render as such:
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```php
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<?php $selected = random_int(0,5) ?>
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<?php switch($selected):
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case 1: ?>
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<?php echo htmlspecialchars((string) "One person selected", 3, 'UTF-8', true) ?>
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<?php break; ?>
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<?php case 2: ?>
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<?php default: ?>
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<?php echo htmlspecialchars((string) "Multiple person ($selected) selected", 3, 'UTF-8', true) ?>
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<?php break; ?>
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<?php endswitch; ?>
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```
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