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[2001-01-16 12:56 UTC] danbeck at dealnews dot com
The following code does not work properly
$number = "999.00";
$precision = 2;
echo preg_replace("/\.0{$precision}/", "", $number);
it echos 999.00
But if you escape the first `{' bracket, the regular expression works properly
echo preg_replace("/\.0\{$precision}/", "", $number);
it echos 999
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Last updated: Thu Oct 23 09:00:02 2025 UTC |
The {$var} construct is interpreted specially in the double-quoted strings by the Zend engine - it will interpolate the variable so you indeed need to escape it with a backslash. This is not a PCRE problem.