PHP code example of zheltikov / php-type-assert

1. Go to this page and download the library: Download zheltikov/php-type-assert library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

zheltikov / php-type-assert example snippets




heltikov\TypeAssert\{is_, as_, null_as_};

// Using `is_()` to check types
is_(1, 'int');        // true
is_('foo', 'int');    // false
is_(1, 'num');        // true
is_(1.5, 'num');      // true
is_('foo', 'num');    // false
is_('mykey', '?arraykey');  // true
is_('bar', '!num');    // true
is_('X', 'char');    // true

// Enforcing types with `as_()`
as_(1, 'int');        // 1
as_('foo', 'int');    // TypeAssertionException
as_(123, '?num');     // 123
as_('bar', '?num');   // TypeAssertionException

// Get `null` if the type does not match with `null_as_()`
null_as_(1, 'int');        // 1
null_as_('foo', 'int');    // null
null_as_(123, '?num');     // 123
null_as_('bar', '?num');   // null

// As you can see performing type checks with these functions is much more
// compact that doing it with `if`s
// For example, instead of...

if (is_int($value) || is_float($value)) {
    // do something
}

// ...use...

if (is_($value, 'num')) {
    // do something
}

// ...or even...

as_($value, 'num');
// do something


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