![]() Here's the PSv4 syntax for the optimized. ![]() ) Another possible way to accomplish this is to use an expression in your query to returns zeroes instead of nulls. In above code of PHP, space is replaced with underscore. If the array is empty, then the implode () function returns an empty string. (See the Warning box in the foreach documentation. The order of string elements in the result string is the same as the order they appear on the array. I'll be using a four-element array that represents all the cases. You should unset the reference after the foreach loop. I'll show you the PSv4 and up way now, but will from then on stick to PSv2 syntax, to be friendlier to people stuck in non-optimal environments with older software (trust me, it happens). You can of course also use the regular pipeline-based cmdlet Where-Object as you can in PowerShell v2. Remove and consider only $null as emptyIn PowerShell version 4 and up, you can use the LINQ-based, optimized (faster, but likely more memory-consuming) "Where" method on the array to remove the $null elements. If charlist is omitted, then trim strips whitespace (blankspaces, tabs, newlines, return characters (r), and null characters (0)). Function Reference Variable and Type Related Extensions Arrays Array Functions Change language: Submit a Pull Request Report a Bug arrayreplace (PHP 5 > 5.3.
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