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@ 2012-09-02T11:32:44Z

<?php

error_reporting(-1); 
date_default_timezone_set('Europe/Berlin');

    function convertToTimestamp($str) {
  
        echo "Input: " . $str . "<br>";
        $str = trim($str);
        
        // date_create(), date_fromat() ab PHP 5.2.0
        if (function_exists('date_create') && function_exists('date_format')) {
            $date = date_create($str);
            $x = ($date !== false) ? (int)date_format($date, 'U') : false;
            echo "date_create()";
            var_dump( $x );
            echo "Entspricht: " . date("Y-m-d H:i", $x);
            echo "<p><hr></p>";
            return;
        }

		// Fallback mit strtotime()
		$ts = strtotime($str);
        if ($ts == -1) $ts = false; // vor PHP 5.1 kommt -1 bei Fehler
        echo "strtotoime()";
        var_dump($ts);
        echo "Entspricht: " . date("Y-m-d H:i", $ts);
        echo "<p><hr></p>\n";
    }

convertToTimestamp("2012-01-01");
convertToTimestamp("2012-01-01 15:00");
convertToTimestamp("2011-02-29");
convertToTimestamp("foo");
?>

Output for git.master, git.master_jit, rfc.property-hooks: Input: 2012-01-01<br>date_create()int(1325372400) Entspricht: 2012-01-01 00:00<p><hr></p>Input: 2012-01-01 15:00<br>date_create()int(1325426400) Entspricht: 2012-01-01 15:00<p><hr></p>Input: 2011-02-29<br>date_create()int(1298934000) Entspricht: 2011-03-01 00:00<p><hr></p>Input: foo<br>date_create()bool(false) Entspricht: 1970-01-01 01:00<p><hr></p>

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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