twigHow to check a checkbox using PHP and Twig?

Using PHP and Twig, you can check a checkbox by setting the checked attribute to true in the HTML element.

Example code

<input type="checkbox" {{ checked ? 'checked' : '' }}>

Output example

<input type="checkbox" checked>

The code above uses the ternary operator to check if the checked variable is true. If it is, the checked attribute is added to the HTML element, otherwise it is left blank.

Parts of the code:

• <input type="checkbox">: HTML element for the checkbox
• {{ checked ? 'checked' : '' }}: ternary operator to check if the checked variable is true
• checked: variable that holds the value of whether the checkbox should be checked or not

Helpful links

• Twig documentation
• PHP documentation

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