8000 minor #12513 Use double \ instead of four \ in expression service (jb… · symfony/symfony-docs@3a54bc3 · GitHub
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minor #12513 Use double \ instead of four \ in expression service (jbdelhommeau)
This PR was merged into the 4.3 branch. Discussion ---------- Use double \ instead of four \ in expression service <!-- If your pull request fixes a BUG, use the oldest maintained branch that contains the bug (see https://symfony.com/roadmap for the list of maintained branches). If your pull request documents a NEW FEATURE, use the same Symfony branch where the feature was introduced (and `master` for features of unreleased versions). --> Commits ------- 6c60285 User double \ instead of four \ in expression service
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‎service_container/expression_language.rst

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@@ -28,7 +28,9 @@ to another service: ``App\Mailer``. One way to do this is with an expression:
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App\Mail\MailerConfiguration: ~
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App\Mailer:
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arguments: ["@=service('App\\\\Mail\\\\MailerConfiguration').getMailerMethod()"]
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arguments: ['@=service("App\\Mail\\MailerConfiguration").getMailerMethod()']
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# when using double-quoted strings, the backslash needs to be escaped twice (see https://yaml.org/spec/1.2/spec.html#id2787109)
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# arguments: ["@=service('App\\\\Mail\\\\MailerConfiguration').getMailerMethod()"]
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.. code-block:: xml
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