functions.md

Functions

You can use the following functions to get your images into your template:

Basic functions

• get_timber_image() – Returns the src attribute together with the alt attribute for an image.
• get_timber_image_src() – Returns the src for an image.
• get_timber_image_srcset() – Returns the srcset attribute based on the srcset entry in the image configuration for an image size.
• get_timber_image_width() - Returns the width of an image size.
• get_timber_image_height() - Returns the height of an image size.

Responsive images

• get_timber_picture_responsive() – Returns the picture markup used for modern image formats using a fallback source.
• get_timber_image_responsive() – Returns the srcset, size and alt attributes for an image.
• get_timber_image_responsive_src() – Returns the srcset and sizes for an image. This is practically the same as get_timber_image_responsive, just without the alt tag.
• get_timber_image_responsive_acf() – Takes the field name of an ACF image as the input and returns the same output as get_timber_image_responsive().

Image texts

• get_timber_image_alt() – Returns the alt text for an image.
• get_timber_image_caption() – Returns the caption for an image.
• get_timber_image_description() – Returns the description for an image.

Additional helpers

• make_timber_image_lazy() - Prepares the srcset markup for lazy-loading. Replaces srcset="" with data-srcset="".

---

get_timber_image

get_timber_image( int $post_id|\Timber\Image $timber_image, string|array $size )

Returns the src attribute together with the alt attribute for an image.

Usage in WordPress templates

<img<?php echo get_timber_image( get_post_thumbnail_id(), 'custom-4' ); ?>>

Usage in Twig

For Twig, this function is used as a filter on the image appended with a |.

<img{{ post.thumbnail|get_timber_image('custom-4-crop') }}>

---

get_timber_image_src

get_timber_image_src( int $post_id|\Timber\Image $timber_image, string|array $size )

Returns the src for an image.

Usage in WordPress templates

<img src="<?php echo get_timber_image_src( get_post_thumbnail_id(), 'custom-4-crop' ); ?>">

Usage in Twig

<img src="{{ post.thumbnail|get_timber_image_src('custom-4-crop') }}">

---

get_timber_image_srcset

get_timber_image_srcset( int $post_id|\Timber\Image $timber_image, string|array $size )

Returns the srcset attribute based on the srcset entry in the image configuration for an image size.

Usage in WordPress templates

<img srcset="<?php echo get_timber_image_srcset( get_post_thumbnail_id(), 'teaser' ); ?>">

Usage in Twig

<img srcset="{{ post.thumbnail|get_timber_image_srcset('teaser') }}">

---

get_timber_image_width

get_timber_image_width( int $post_id|\Timber\Image $timber_image, string|array $size )

Returns the image width for an image size. If you use the lazy loading functionality, this is added automatically.

Usage in WordPress templates

<img width="<?php get_timber_image_width( get_post_thumbnail_id(), 'header' ); ?>">

Usage in Twig

<img width="{{ post.thumbnail|get_timber_image_width('header') }}">

---

get_timber_image_height

get_timber_image_height( int $post_id|\Timber\Image $timber_image, string|array $size )

Returns the image height for an image size. If you use the lazy loading functionality, this is added automatically.

Usage in WordPress templates

<img height="<?php get_timber_image_height( get_post_thumbnail_id(), 'header' ); ?>">

Usage in Twig

<img height="{{ post.thumbnail|get_timber_image_height('header') }}">

---

get_timber_picture_responsive

get_timber_picture_responsive( int|Timber\Image $timber_image, string $size, array $args = [] )

Gets the picture markup used for modern image formats using a fallback source.

Usage in WordPress templates

<picture>
    <?php echo get_timber_picture_responsive( get_post_thumbnail_id(), 'custom-6' ); ?>
</picture>

Usage in Twig

<picture>
    {{ post.thumbnail|get_timber_picture_responsive('custom-6') }}
</picture>

img_class

If you want to define the CSS class for the fallback <img>, you can use the img_class parameter.

PHP

<picture>
    <?php echo get_timber_picture_responsive( get_post_thumbnail_id(), 'custom-6', [
        'img_class' => 'the-class',
    ] ); ?>
</picture>

Twig

<picture>
    {{ post.thumbnail|get_timber_picture_responsive('custom-6', {
        img_class: 'the-class',
    }) }}
</picture>

---

get_timber_image_responsive

get_timber_image_responsive( int $post_id|\Timber\Image $timber_image, string|array $size )

Returns the srcset, size and alt attributes for an image. If this function is used with an SVG image, the single src will be returned instead of srcset.

Usage in WordPress templates

<img<?php echo get_timber_image_responsive( get_post_thumbnail_id(), 'custom-6' ); ?>>

Usage in Twig

<img{{ post.thumbnail|get_timber_image_responsive('custom-6') }}>

---

get_timber_image_responsive_src

Returns the srcset and sizes for an image. This is practically the same as get_timber_image_responsive, just without the alt tag.

---

get_timber_image_responsive_acf

get_timber_image_responsive_acf( string $field_name, string|array $size )

Takes the field name of an ACF image as the input and returns the same output as get_timber_image_responsive().

Usage in WordPress templates

<img<?php echo get_timber_image_responsive_acf( 'image', 'custom-4-crop' ); ?>>
<!-- Will use get_field( 'image' ) to get the image information -->

Usage in Twig

For Twig, you won’t use the function as a filter like in the examples above, but as a function.

<img{{ get_timber_image_responsive_acf('image', 'custom-4-crop') }}>

---

get_timber_image_alt

get_timber_image_alt( int|Timber\Image $timber_image )

Returns the alt text for an image. Be aware that get_timber_image_responsive() will always add an alt attribute.

Usage in WordPress templates

<img … alt="<?php echo get_timber_image_alt( $post->thumbail() ); ?>">

Usage in Twig

<img … alt="{{ get_timber_image_alt(post.thumbnail) }}">

---

get_timber_image_caption

get_timber_image_caption( int|Timber\Image $timber_image )

Returns the caption for an image.

Usage in WordPress templates

<?php echo get_timber_image_caption( $post->thumbail() ); ?>

Usage in Twig

{{ get_timber_image_caption(post.thumbnail) }}

---

get_timber_image_description

get_timber_image_description( int|Timber\Image $timber_image )

Returns the description for an image.

Usage in WordPress templates

<?php echo get_timber_image_description( $post->thumbail() ); ?>

Usage in Twig

{{ get_timber_image_description(post.thumbnail) }}

---

make_timber_image_lazy

make_timber_image_lazy( string $image_markup, array $attributes = ['srcset'] )

Prepares the srcset markup for lazy-loading. Updates the attributes passed in the $attributes parameter with a data- prefix. For example srcset is replaced with data-srcset.

Usage in WordPress templates

<img<?php echo make_timber_image_lazy(
	get_timber_image_responsive( get_post_thumbnail_id(), 'custom-6' )
); ?>>

<img<?php echo make_timber_image_lazy(
	get_timber_image_responsive( get_post_thumbnail_id(), 'custom-6' ), ['srcset', 'src', 'sizes']
); ?>>

Usage in Twig

In Twig, you can use the lazy filter.

{# Default, srcset only. #}
<img{{ post.thumbnail|get_timber_image_responsive('custom-6')|lazy }}>

{# Custom array of attributes #}
<img{{ post.thumbnail|get_timber_image_responsive('custom-6')|lazy(['srcset', 'src', 'sizes']) }}>