如何将空值传递给 php cli

Question

Like the title, I have a php script: demo.php and run via php cli:

demo.php val1 val2

so how to pass val1=empty value to php cli?

demo.php '' val2

I want to get the val1 to be empty or null

Answer 1

You should name your parameters:

php demo.php -a "val1" -b "val2"

The code:

$options = getopt('a:b:');

if (isset($options['a'])) { /* param "a" has been provided */ }
if (isset($options['b'])) { /* param "b" has been provided */ }