![]() ![]() PHP Notice: Undefined index: require-dev in /tmp/ternary-test.php on line 4Īnyway, excuse my curious ramblings as I am learning something new (and maybe this may be helpful to others). ![]() Note: If multiple variables are supplied, then this function will return true only if all of the variables are set. This function returns true if the variable exists and is not NULL, otherwise it returns false. $foo = (!$composerJsonData) ? $composerJsonData : The isset () function checks whether a variable is set, which means that it has to be declared and is not NULL. I then updated the script to work with 5.6, just to see the warnings:
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