> Sure. Use debug_backtrace to figure out what line and what file the
> caller is in, then read that file, find that line, find the function
> call within that line, and read what ever is between the parentheses.
Something like this:
<?php
function myTest($input) {
$backtrace = debug_backtrace();
$file = file($backtrace[0]['file']);
$linenum = $backtrace[0]['line'];
$function = $backtrace[0]['function'];
$line = $file[$linenum-1];
preg_match("/{$function}\((.*)\);/", $line, $matches);
echo "This function called with '{$matches[1]}'";
}
$a = 5;
myTest($a);
?>
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