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I'm attempting to troubleshoot a problem, and need to understand what this if statement is saying:
if ($confirmation = $payment_modules->confirmation()) {
All the resources I can find only show if statements with double equal signs, not single. Is this one of the shorthand forms of a php if? What is it doing?
(If it's actually wrong syntax, changing it to a double equal sign doesn't resolve the problem. As-is, in some scenarios it does return true. In the scenario I'm troubleshooting, it doesn't return true until after I refresh the browser.)
Any help is greatly appreciated!!!
768
When using ==, if the two items are the same, it will return True. Otherwise, it will return False.
Single Equal (=) in JavaScript We use Single Equal sign to assign value to the variable or to initialize an object. For example. var t = new Date(); //Variable assignment var amount = 100; //Object initialization var t = new Date();
PHP Conditional Statements if statement - executes some code if one condition is true. if...else statement - executes some code if a condition is true and another code if that condition is false. if... elseif...else statement - executes different codes for more than two conditions.
The comparison operator called as the Identical operator is the triple equal sign “===”. This operator allows for a much stricter comparison between the given variables or values. This operator returns true if both variable contains same information and same data types otherwise return false.
It's a form of shorthand, which is exactly equivalent to this:
$confirmation = $payment_modules->confirmation();
if ($confirmation) {
}
This will first assign the value of $payment_modules->confirmation() to $confirmation. The = operator will evaluate to the new value of $confirmation.
This has the same effect as writing:
$confirmation = $payment_modules->confirmation();
if ($confirmation) {
// this will get executed if $confirmation is not false, null, or zero
}
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