1.2.1342. Use The Blind Var

When in a loop, it is faster to rely on the blind var, rather than the original source.

When the key is referenced in the foreach loop, it is faster to use the available container to access a value for reading.

Note that it is also faster to use the value with a reference to handle the writings.

<?php

// Reaching $source[$key] via $value is faster
foreach($source as $key => $value) {
    $coordinates = array('x' => $value[0],
                         'y' => $value[1]);
}

// Reaching $source[$key] via $source is slow
foreach($source as $key => $value) {
    $coordinates = array('x' => $source[$key][0],
                         'y' => $source[$key][1]);
}

?>

1.2.1342.1. Suggestions

• Use the blind var

1.2.1342.2. Specs

Short name	Performances/UseBlindVar
Rulesets	All, Changed Behavior, Performances
Exakat since	1.2.9
PHP Version	All
Severity	Minor
Time To Fix	Instant (5 mins)
Precision	Very high
Features	blind-variable
Available in	Entreprise Edition, Exakat Cloud