filter_var_vs_cast__booleans.php

<?php

$tests = [
	true,
	false,
	-1,
	0,
	1,
	-5.0,
	1.0,
	5,
	'-5',
	'0',
	'1',
	'',
	' ',
	'abc',
	[],
	[ 1 ],
	(object) [],
	(object) [ 'foo' => 'bar' ],
];

print 'FILTER  CAST' . PHP_EOL;

foreach ( $tests as $test_value ) {
	print filter_var( $test_value, FILTER_VALIDATE_BOOL ) ? '1' : '0';
	print '       ';
	print $test_value ? '1' : '0';
	print PHP_EOL;
}