<?php $txt = " Hello World\tFoo\t\tBar but single space is fine 8 are not, 4 are not,\ttabs are not,\t\tdouble tabs are not"; $orig = str_replace(' ', '', $txt); $t1 = preg_replace('/\t| {4}/', '', $txt); var_dump($txt); var_dump($orig); echo '-----------------' . PHP_EOL; var_dump($t1);
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