Summary
It is possible to enable strict type mode in PHP on a per-file basis by placing the declare(strict_types=1); method at the top of the file.
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This implementation means that PHP will 'ignore' type hints and return types unless the declare(strict_types=1); statement appears at the top of the file.
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By default, PHP will coerce values of the wrong type into the expected scalar type declaration if possible.
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Summary
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By default, PHP will coerce values of the wrong type into the expected scalar type declaration if possible. For example, a function that is given an int for a parameter that expects a string will get a variable of type string .
It is possible to enable strict mode on a per-file basis.
PHP: Type declarations - Manual
php.net
In PHP the declare(strict_types = 1); directive enables strict mode. In strict mode, only a variable of exact type of the “type declaration” will be ...
Strict typing mode in PHP 7
brainbell.com
New object type A new type, object , has been introduced that can be used for (contravariant) parameter typing and (covariant) return typing of any objects.
PHP: New features - Manual
php.net
Summary
Developers can turn strict types on by placing the declare(strict_types=1); method at the top of a PHP file.
This implementation means that PHP will 'ignore' type hints and return types unless the declare(strict_types=1); statement appears at the top of the file.
How PHP Type Declarations Actually Work - DEV Community
dev.to
In the strict mode, PHP expects the values with the type matching with the target types. If there’s a mismatch, PHP will issue an error.
PHP strict_types
phptutorial.net
all function calls and return statements within a file have “strict” type-checking for scalar type declarations, including for extension and built-in PHP ...
PHP: rfc:scalar_type_hints_v5
php.net
But PHP wouldn’t be PHP if there wasn’t something odd about this feature. Type hinting comes in two flavors: strict and non-strict. This is the result of a ...
Strict typing in PHP 7 - poll results
evertpot.com
PHP Strict Types Note: This post is over two years old and so the information contained here might be out of date. If you do spot something please leave a ...
PHP Strict Types | #! code
hashbangcode.com
