Online PHP editor | output for u4rgr

@ 2015-04-24T02:22:53Z

<?php
error_reporting(-1);
ini_set('display_errors', 1);

class system_tags {
	function __call($name, $params) {
		return '(METHOD "' . $name . '" WAS CALLED)';
	}
}

class App {
	function run() {
		// Prerequisites.
		$system_tags = new system_tags();
		
		$core = new \stdClass();
		$core->tags = array(
			'hello' => 'tagHelloMethod',
			'world' => 'tagWorldMethod',
		);
		
		// Approach 1.
		$this->template = 'Blah blah {hello} blah blah {world}.';
		$this->withStrReplace($core, $system_tags);
		echo $this->template . "\n";
		
		// Approach 2.
		$this->template = 'Blah blah {hello} blah blah {world}.';
		$this->withRegexReplaceCallback($core, $system_tags);
		echo $this->template . "\n";
	}
	
	function withStrReplace($core, $system_tags) {
	    
		foreach($core->tags as $tag_name => $tag_method) {
			$this->template = str_replace(
				'{' . $tag_name . '}', 
				$system_tags->{$tag_method}(), 
				$this->template
			);
		}
		
	}
		
	function withRegexReplaceCallback($core, $system_tags) {
	    
		$callback = static function ($match) use ($system_tags) {
			return $system_tags->{$match['method_name']}();
		};
		
		foreach($core->tags as $tag_name => $tag_method) {
			$this->template = preg_replace_callback(
				'/\{(?<method_name>' . preg_quote($tag_name) . ')\}/', 
				$callback, 
				$this->template
			);
		}
		
	}
}

$app = new App();
$app->run();

Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Deprecated: Creation of dynamic property App::$template is deprecated in /in/u4rgr on line 23 Blah blah (METHOD "tagHelloMethod" WAS CALLED) blah blah (METHOD "tagWorldMethod" WAS CALLED). Blah blah (METHOD "hello" WAS CALLED) blah blah (METHOD "world" WAS CALLED).
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28: Blah blah (METHOD "tagHelloMethod" WAS CALLED) blah blah (METHOD "tagWorldMethod" WAS CALLED). Blah blah (METHOD "hello" WAS CALLED) blah blah (METHOD "world" WAS CALLED).
Output for 5.3.0 - 5.3.29: Parse error: syntax error, unexpected T_FUNCTION, expecting T_PAAMAYIM_NEKUDOTAYIM in /in/u4rgr on line 47
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/u4rgr on line 16 Parse error: syntax error, unexpected T_STATIC in /in/u4rgr on line 47
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/u4rgr on line 16 Parse error: parse error, unexpected T_STATIC in /in/u4rgr on line 47
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/u4rgr on line 16 Parse error: parse error in /in/u4rgr on line 47
Process exited with code 255.

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