Explanation for php code with if statement

Question

I have code like this can some one help me figure out how the condition logic work in this

$environment = ( $this->environment == "yes" ) ? 'TRUE' : 'FALSE';
    // Decide which URL to post to
      $environment_url = ( "FALSE" == $environment )
                               ? 'https://api.ewaypayments.com/AccessCodes'
               : 'https://api.sandbox.ewaypayments.com/AccessCodes';

Look up how the ternary operator works, [here's](https://davidwalsh.name/php-shorthand-if-else-ternary-operators) a useful link — Ismael Padilla, Jun 28 '19 at 22:37
just think an "if" in front of each "(", a "then" for each "?" and an "else" for each ":" — Jeff, Jun 28 '19 at 22:40
@Jeff that makes it very easy thank you :). Maybe you can make it as an answer? — , Jun 28 '19 at 22:43
Possible duplicate of [Reference — What does this symbol mean in PHP?](https://stackoverflow.com/questions/3737139/reference-what-does-this-symbol-mean-in-php) — Greg Schmidt, Jun 29 '19 at 00:55
Someone in your team really takes a lot of extra work to avoid [booleans](https://www.php.net/manual/en/language.types.boolean.php) — Álvaro González, Jun 29 '19 at 08:03

Zak · Answer 1 · 2019-06-28T22:52:56.270

You have two ternary if statements. Although they look different than traditional if statements, they operate the same way.

Line by line -- This is how this code works:

$environment = ( $this->environment == "yes" ) ? 'TRUE' : 'FALSE';

This is the exact same as

if($this->environment == "yes"){
    $environment = 'TRUE';
}else{
    $environment = 'FALSE';
}

So now $environment has been set. Onto the next ternary if

$environment_url = ( "FALSE" == $environment )
    ? 'https://api.ewaypayments.com/AccessCodes'
    : 'https://api.sandbox.ewaypayments.com/AccessCodes';

This is the exact same as this if:

if ($environment == 'FALSE'){
    $environment_url = 'https://api.ewaypayments.com/AccessCodes';
}else{
    $environment_url = 'https://api.sandbox.ewaypayments.com/AccessCodes';
}

The ? in the statement indicates to php that this is a ternary conditional. The condition on the left side of the : is what happens if the statement returns "positive". The condition on the right side is what happens if the statement returns "negative".

score 0 · Answer 2 · answered Jun 28 '19 at 22:53

0

Just think an "if" in front of each (, a "then" for each ? and an "else" for each :

It's called tenary operator

answered Jun 28 '19 at 22:53

Jeff

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Explanation for php code with if statement

2 Answers2