What is the purpose of heredoc blocks in PHP?

Heredoc blocks in PHP are used to create large blocks of text without having to worry about escaping characters. This is especially useful when dealing with long strings that contain both single and double quotes. Heredoc syntax allows for easy multiline strings and variable interpolation within the block. 

$variable = "world";
$heredoc = <<<EOD
Hello $variable!
This is a heredoc block.
EOD;

echo $heredoc;

Keywords

heredoc blocks PHP syntax multiline strings embedded variables

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