function ProcessUtils::validateInput

Validates and normalizes a Process input.

Parameters

string $caller The name of method call that validates the input:

mixed $input The input to validate:

Throws

InvalidArgumentException In case the input is not valid

2 calls to ProcessUtils::validateInput()

InputStream::write in vendor/symfony/process/InputStream.php

Appends an input to the write buffer.

Process::setInput in vendor/symfony/process/Process.php

Sets the input.

File

vendor/symfony/process/ProcessUtils.php, line 40

Class

ProcessUtils

ProcessUtils is a bunch of utility methods.

Namespace

Symfony\Component\Process

Code

public static function validateInput(string $caller, mixed $input) : mixed {
    if (null !== $input) {
        if (\is_resource($input)) {
            return $input;
        }
        if (\is_scalar($input)) {
            return (string) $input;
        }
        if ($input instanceof Process) {
            return $input->getIterator($input::ITER_SKIP_ERR);
        }
        if ($input instanceof \Iterator) {
            return $input;
        }
        if ($input instanceof \Traversable) {
            return new \IteratorIterator($input);
        }
        throw new InvalidArgumentException(\sprintf('"%s" only accepts strings, Traversable objects or stream resources.', $caller));
    }
    return $input;
}