String will likely become a reserved word in PHP 7

[leedavis81]

Although the whole Scalar Type Hint implementation is up in the air, it's very likely that string will become a reserved word in PHP 7: https://wiki.php.net/rfc/scalar_type_hints#reserve_for_future_use
For this reason it might be worth looking into using a different name for this class:

https://github.com/justinrainbow/json-schema/blob/master/src/JsonSchema/Constraints/String.php

Just a heads-up.

[dlaynes]

The STH RFC was approved recently :)

Fatal error: "string" cannot be used as a class name in phar://C:/ProgramData/ComposerSetup/bin/composer.phar/vendor/justinrainbow/json-schema/src/JsonSchema/Constraints/String.php on line 18

[suralc]

@justinrainbow The RFC has been accepted. string, int, bool, float are now reserved. There is another rfc currently in voting to soft-reserve object (Not reserved immedeatly, but reserving it in 7.x will not be considered a BC break).

You might preserve BC by renaming the class and all its internal usages and conditionally alias (class_alias) it using it's old name on php < 7. And add a note that all projects depending on this class should use the new name if they want to be compatible with php7.

References:

• Scalar Typehints
• Reserve even more names