Online PHP editor | output for ZRGqD

@ 2015-10-02T11:02:37Z

<?php
$year        = '2015';
$week        = '01';
$month       = date('m', strtotime($year . 'W' . $week));
        
$weeks = [
            '0' => ((int)$week == 1) ? date('W', strtotime('December 28th,' . $year - 1)) : (int)$week - 1,
            '1' => $week,
            '2' => (date('W', strtotime('December 28th,' . $year)) == $week) ? '01' : (int)$week + 1,
            '3' => (date('W', strtotime('December 28th,' . $year)) == $week) ? '01' : (int)$week + 2,
            '4' => (date('W', strtotime('December 28th,' . $year)) == $week) ? '01' : (int)$week + 3,
            '5' => (date('W', strtotime('December 28th,' . $year)) == $week) ? '01' : (int)$week + 4
        ];
        
        print_r($weeks);

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Array ( [0] => 52 [1] => 01 [2] => 2 [3] => 3 [4] => 4 [5] => 5 )
Output for 7.4.0 - 7.4.33: Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /in/ZRGqD on line 7 Warning: A non-numeric value encountered in /in/ZRGqD on line 7 Array ( [0] => 40 [1] => 01 [2] => 2 [3] => 3 [4] => 4 [5] => 5 )
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33: Warning: A non-numeric value encountered in /in/ZRGqD on line 7 Array ( [0] => 40 [1] => 01 [2] => 2 [3] => 3 [4] => 4 [5] => 5 )
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20: Array ( [0] => 40 [1] => 01 [2] => 2 [3] => 3 [4] => 4 [5] => 5 )

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