<?php
 
$output ="";
    $semana = array(
 
    '1' => 'Segunda-Feira',
    '2' => 'Terca-Feira',
    '3' => 'Quarta-Feira',
    '4' => 'Quinta-Feira',
    '5' => 'Sexta-Feira',
    '6' => 'Sábado',
    '7' => 'Domingo'
);
 
$a = array_slice($semana, date('w') - 1 );
 
$b = array_slice($semana, 0 , date('w') - 1 );
 
$c = array_merge_recursive( $a , $b );
 
foreach( $c as $key => $value ) {
 
    $output = $output . "\n". $value ;
}
 
 
 
echo $output;

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