{
$headers = '';
foreach ($this->headers as $name => $value) {
- if (is_string($value)) {
+ if (\is_string($value)) {
$headers .= $this->buildHeader($name, $value);
} else {
foreach ($value as $headerValue) {
foreach ($this->headers as $key => $value) {
if (str_replace('-', '_', strtolower($key)) === $normalizedHeader) {
if ($first) {
- return is_array($value) ? (count($value) ? $value[0] : '') : $value;
+ return \is_array($value) ? (\count($value) ? $value[0] : '') : $value;
}
- return is_array($value) ? $value : array($value);
+ return \is_array($value) ? $value : array($value);
}
}