syntax error, unexpected '?', expecting variable (T_VARIABLE)

[kanokHossain]

while I am want to call the function below, getting the error syntax error, unexpected '?', expecting variable (T_VARIABLE), using PHP version PHP 7.4.27
public function redirectUserToXero() { return $this->getOAuth2()->getAuthorizationRedirect(); }

[richmartell]

I am also seeing this on a codebase which has been using this library for a while. Just introduced.

[richmartell]

I think related to this commit... b6fed0c

[kanokHossain]

Thanks, @richmartell for your response, please let me know if you get any solution on this in future

[kanokHossain]

@richmartell you are right its came with this line,

public function refreshAccessToken(AccessTokenInterface $accessToken, string? $grantType = null)

new released has been deployed 8 days ago, since the error came.,

i remove latest version and using "langleyfoxall/xero-laravel": "v3.1.1", its working fine till now, i am still doing other setup, lets see how its goes

[AbdullahGhanem]

#54
check this

[JacopoKenzo]

Same issue here!

[stojankukrika]

the same issue here :( with last version :(

[shirish71]

For php 7.4 remove "string?" from line 133 on OAuth2.php in refreshAccessToken() method, that should fix this error.

Go to src>OAuth2.php and remove "string?" from refreshAccessToken()
Previous: public function refreshAccessToken(AccessTokenInterface $accessToken, string? $grantType = null)
Now: public function refreshAccessToken(AccessTokenInterface $accessToken, $grantType = null)

[emp-sean]

This is also an issue for PHP8 in 3.1.2

[ed-hanton-swytch]

Also getting this, that fix (#58) seems to have solved it, and has been merged into master. Can a new release be created to deploy this fix?

[sunilpatidar]

go to : vendor\langleyfoxall\xero-laravel\src\OAuth2.php

     public function refreshAccessToken(AccessTokenInterface $accessToken, string ? $grantType = null)  
     ->remove "?" from above line

[patthewebrat]

I have experienced this issue and it looks like this is a basic syntax error.

This is not valid PHP as the ? is on the wrong side of the string declaration:

public function refreshAccessToken(AccessTokenInterface $accessToken, string? $grantType = null)

I'm assuming whoever wrote this is trying to indicate that $grantType is nullable. This should be represented as follows:

public function refreshAccessToken(AccessTokenInterface $accessToken, ?string $grantType = null)

Applying this change locally has resolved the error for me and retains the nullable state of $grantType.

[jameswilddev]

Hello. Just noticed this myself. It looks like @shirish71 had already done a great job of fixing this, but it was never included in a release! v3.1.3 should fix this, please let us know if it does not!