PHP Community Marketing Expert Question:
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Explain what are PSRs? Choose 1 and briefly describe it?

Answer:

PSRs are PHP Standards Recommendations that aim at standardising common aspects of PHP Development.

An example of a PSR is PSR-2, which is a coding style guide. More info on PSR-2 here.

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Tell me can the value of a constant change during the script’s execution?$variable="name";
$statement="my $variable will not print";
print($statement);
print"";
$statement="my $variable will print";
print($statement);?