<?php
echo "ctype_space || str\n";
$before = microtime(true);
for ($i = 0; $i < 100000; $i++) {
    $str = '      ';
    if (ctype_space($str) || $str == '') {
        
    }
}

$after = microtime(true);
echo ($after - $before) / $i . " sec\n\n";


echo "trim\n";
$before = microtime(true);

for ($i = 0; $i < 100000; $i++) {
    $str = '      ';
    if (trim($str) == '') {
        
    }
}

$after = microtime(true);
echo ($after - $before) / $i . " sec\n\n";


echo "ctype_space || str\n";
$before = microtime(true);
for ($i = 0; $i < 100000; $i++) {
    $str = '      ';
    if (ctype_space($str) || $str == '') {
        
    }
}

$after = microtime(true);
echo ($after - $before) / $i . " sec\n\n";


echo "trim\n";
$before = microtime(true);

for ($i = 0; $i < 100000; $i++) {
    $str = '      ';
    if (trim($str) == '') {
        
    }
}

$after = microtime(true);
echo ($after - $before) / $i . " sec\n\n";

echo "ctype_space || str\n";
$before = microtime(true);
for ($i = 0; $i < 100000; $i++) {
    $str = '      ';
    if (ctype_space($str) || $str == '') {
        
    }
}

$after = microtime(true);
echo ($after - $before) / $i . " sec\n\n";


echo "trim\n";
$before = microtime(true);

for ($i = 0; $i < 100000; $i++) {
    $str = '      ';
    if (trim($str) == '') {
        
    }
}

$after = microtime(true);
echo ($after - $before) / $i . " sec\n\n";
?>