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The ze\ray library
ze\ray::issetArrayKey()
Function ze\ray::issetArrayKey()
In PHP:
ze\ray::issetArrayKey($array, $key, $key2 = false, $key3 = false, $key4 = false, $key5 = false, $key6 = false, $key7 = false, $key8 = false, $key9 = false)
Description
A drop in replacement for accessing a variable from an array in a boolean statement, which will not issue an error if the variable is not set.
Shortcut for is_array($array) && isset($array[$key]) && $array[$key]
Example
The following code could be used to check if a value was set in an array and was not empty:
if (issetArrayKey($myArray, 'key'))
If you were certain that $myArray was an array, the example above could be be rewritten using pure PHP:
if (!empty($myArray['key']))
This second example is more efficient as it doesn't involve a function call, but would not work as expected if $myArray was a string.
