woocommerce/plugins/woocommerce-blocks/docs/internal-developers/translations/translations-in-PHP-files.md

203 lines
5.8 KiB
Markdown
Raw Normal View History

Add docs about translation handling (https://github.com/woocommerce/woocommerce-blocks/pull/6405) * Create translation handling files * Add docs about “Translation basics” * Update docs for “Translation basics” * Add docs about “Translations in PHP files” * Add docs about “Translations in JS/TS files” * Update docs for “Translation basics” * Add docs for “Translation management” * Add docs for “Translations in FSE templates” * Add “Translations” to “WooCommerce Blocks Handbook” * Add docs for “Lazy-load translations” * Rewrite first paragraph of “Translations in FSE templates” * Fix typo * Update repo URL * Remove obsolete space and comma * Update repo URL * Rename lazy-load file * Add section about “sprintf()” to “Translations in JS/TS files” * Remove reference to “npm install @wordpress/i18n” * Add docs for “Translation files and loading” * Rename readme.md to README.md * Remove double file extension * Remove self-explaining explenations * Update docs/README.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translation-basics.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translation-basics.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translation-loading.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translation-loading.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translation-loading.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translation-loading.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translation-loading.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translation-loading.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translation-management.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Update docs/translations/translations-in-FSE-templates.md Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com> * Clarify how to use variables in translations * Change “i18n” to “internationalization (i18n)” * Link translation functions to the WordPress reference * Add Translation management to Translation management * Update “Translations in FSE templates” * Lint Markdown files * Update chunk translation register functions * Update function that loads the translation file * Update information about lazy-loading * Adjust lazy-loading docs title and file name Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com>
2022-06-10 15:40:05 +00:00
# Translations in PHP files
Translations in PHP files work straight-forward. Translations functions such as `__()` and `_n()` are part of the WordPress core. Therefore, they are available globally and do not have to be imported.
## Usage of localization functions
### `__()`
The function `__()` retrieves the translation of `$text`. This function is available both for PHP & JS/TS.
```php
// Schema
$translation = __( string $text, string $domain = 'default' );
// Example
$translation = __( 'Place Order', 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/__/>.
### `_e()`
The function `_e()` displays the translation of `$text`. This function is only available for PHP.
```php
// Schema
_e( string $text, string $domain = 'default' );
// Example
_e( 'Place Order', 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/_e/>.
### `_ex()`
The function `_ex()` displaya the translated string with gettext context. This function is only available for PHP.
```php
// Schema
_ex( string $text, string $domain = 'default' );
// Example
_ex( 'Place Order', 'Place order button text', 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/_ex/>.
### `_n()`
The function `_n()` translates and retrieves the singular or plural form based on the supplied number. This function is available both for PHP & JS/TS.
```php
// Schema
$translation = _n( string $single, string $plural, int $number, string $domain = 'default' );
// Example
$translation = sprintf(
/* translators: %s number of products in cart. */
_n(
'%d product',
'%d products',
absint( $category->count ),
'woo-gutenberg-products-block'
),
absint( $category->count )
);
```
See also <https://developer.wordpress.org/reference/functions/_n/>.
### `_x()`
The function `_x()` retrieves a translated string with gettext context. This function is available both for PHP & JS/TS.
```php
// Schema
$translation = _x( string $text, string $context, string $domain = 'default' );
// Example
$translation = _x( 'Draft', 'Order status', 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/_x/>.
### `_nx()`
The function `_nx()` translates and retrieves the singular or plural form based on the supplied number, with gettext context. This function is available both for PHP & JS/TS.
```php
// Schema
$translation = _nx( string $single, string $plural, int $number, string $context, string $domain = 'default' );
// Example
$translation = sprintf(
/* translators: %s number of products in cart. */
_nx(
'%d product',
'%d products',
absint( $category->count ),
'Number of products in the cart',
'woo-gutenberg-products-block'
),
absint( $category->count )
);
```
See also <https://developer.wordpress.org/reference/functions/_nx/>.
### `esc_html__()`
The function `esc_html__()` retrieves the translation of `$text` and escapes it for safe use in HTML output. This function is only available for PHP.
```php
// Schema
$translation = esc_html__( string $text, string $domain = 'default' );
// Example
$translation = esc_html__( 'Select a category', 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/esc_html__/>.
### `esc_html_e()`
The function `esc_html_e()` displays the translated text that has been escaped for safe use in HTML output. This function is only available for PHP.
```php
// Schema
esc_html_e( string $text, string $domain = 'default' );
// Example
esc_html_e( 'Select a category', 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/esc_html_e/>.
### `esc_html_x()`
The function `esc_html_x()` translates a string with gettext context, and escapes it for safe use in HTML output. This function is only available for PHP.
```php
// Schema
$translation = esc_html_x( string $text, string $context, string $domain = 'default' );
// Example
$translation = esc_html_x( 'Select a category', 'Product category', 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/esc_html_x/>.
### `esc_attr__()`
The function `esc_attr__()` retrieve the translation of `$text` and escapes it for safe use in an attribute. This function is only available for PHP.
```php
// Schema
$translation = esc_attr__( string $text, string $domain = 'default' );
// Example
$translation = esc_attr__( 'Search', 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/esc_attr__/>.
### `esc_attr_e()`
The function `esc_attr_e()` displays the translated text that has been escaped for safe use in an attribute. This function is only available for PHP.
```php
// Schema
esc_attr_e( string $text, string $domain = 'default' );
// Example
esc_attr_e( 'Search', 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/esc_attr_e/>.
### `esc_attr_x()`
The function `esc_attr_x()` translates the string with gettext context, and escapes it for safe use in an attribute. This function is only available for PHP.
```php
// Schema
$translation = esc_attr_x( string $text, string $domain = 'default' );
// Example
$translation = esc_attr_x( 'Search', 'Search button text' 'woo-gutenberg-products-block' );
```
See also <https://developer.wordpress.org/reference/functions/esc_attr_x/>.
<!-- FEEDBACK -->
---
[We're hiring!](https://woocommerce.com/careers/) Come work with us!
🐞 Found a mistake, or have a suggestion? [Leave feedback about this document here.](https://github.com/woocommerce/woocommerce-blocks/issues/new?assignees=&labels=type%3A+documentation&template=--doc-feedback.md&title=Feedback%20on%20./docs/testing/README.md)
<!-- /FEEDBACK -->