55 lines
1.5 KiB
Markdown
55 lines
1.5 KiB
Markdown
---
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title: auth.checkPhone
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description: Check if this phone number is registered on telegram
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image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
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---
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# Method: auth.checkPhone
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[Back to methods index](index.md)
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Check if this phone number is registered on telegram
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### Parameters:
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| Name | Type | Description | Required |
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|----------|---------------|-------------|----------|
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|phone\_number|[string](../types/string.md) | The phone number to check | Yes|
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### Return type: [auth\_CheckedPhone](../types/auth_CheckedPhone.md)
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### Can bots use this method: **YES**
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### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)):
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```php
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if (!file_exists('madeline.php')) {
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copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
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}
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include 'madeline.php';
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$MadelineProto = new \danog\MadelineProto\API('session.madeline');
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$MadelineProto->start();
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$auth_CheckedPhone = $MadelineProto->auth->checkPhone(['phone_number' => 'string', ]);
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```
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Or, if you're into Lua:
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```lua
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auth_CheckedPhone = auth.checkPhone({phone_number='string', })
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```
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### Errors
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| Code | Type | Description |
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|------|----------|---------------|
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|400|PHONE_NUMBER_BANNED|The provided phone number is banned from telegram|
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|400|PHONE_NUMBER_INVALID|The phone number is invalid|
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|406|PHONE_NUMBER_INVALID|The phone number is invalid|
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|401|AUTH_KEY_PERM_EMPTY|The temporary auth key must be binded to the permanent auth key to use these methods.|
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