Print Flush

print_flush.php

<?php

error_reporting( E_ALL );
ini_set( 'display_errors', true );

if ( !headers_sent() ) {
    header( 'X-Accel-Buffering: no' );
}

function is_apache2() {
    static $bool;
    if ( isset( $bool ) ) {
        return $bool;
    }
    $bool = ( php_sapi_name() !== 'cli' );
    return $bool;
}

function print_flush( $input ) {
    if ( is_apache2() ) {
        print $input;
        ob_flush();
        flush();
    } else {
        print strip_tags( str_replace( array( '<br/>', '<br>' ), "\x0a", $input ) );
    }
}

print_flush( 'Oi' . '<br/>' ); sleep(5);
print_flush( 'Eu sou o Goku' . '<br/>' ); sleep(5);
print_flush( "\x0a" );

?>