Are there any specific PHP versions or configurations that may cause issues when using the <<<EOT syntax for variable assignment?

Using the <<<EOT syntax for variable assignment in PHP can cause issues if there are leading spaces or tabs before the closing EOT tag. To solve this problem, ensure that there are no leading spaces or tabs before the closing EOT tag in your code.

// Example of correct usage of &lt;&lt;&lt;EOT syntax for variable assignment
$variable = &lt;&lt;&lt;EOT
This is a multi-line string.
No leading spaces or tabs before the closing EOT tag.
EOT;