function php_strip_whitespace($file)
{
if (!@is_readable($file)) {
return '';
}
$contents = join('', @file($file));
$out = '';
$state = 0;
for ($i = 0; $i < strlen($contents); $i++) {
if (!$state && is_whitespace($contents[$i])) {
continue;
}
if (!$state && ($c_close = is_commentopen($contents, $i))) {
$c_open_len = $contents[$i] == '/' ? 2 : 1;
$i = strpos($contents, $c_close, $i + $c_open_len) + strlen($c_close) - 1;
continue;
}
$out .= $contents[$i];
if (is_quote($contents[$i])) {
if ($state == $contents[$i] && !is_escaped($contents, $i)) {
$state = 0;
continue;
}
if (!$state) {
$state = $contents[$i];
continue;
}
}
}
return $out;
}
</div>
<div class="wpi_right_col">
<?php
if (show_business_info()) {
?>
<?php
wp_invoice_show_business_information();
?>
<?php
}
?>
<?php
if (!is_quote()) {
?>
<div class="wpi_checkout">
<?php
if (allow_partial_payments()) {
?>
<?php
show_partial_payments();
?>
<?php
}
?>
<?php
show_payment_selection();
?>