![]() $count = 0 $qryStr = "?" foreach( $hashData as $key => $value) echo strlen($qryStr). Thanks Aimee //Make the Query String for the Graph //BarGraph.php?val1=$key&cnt1=$val&val2=$key&cnt2=$val. You can loop throw the rows and columns, checking for nulls, keeping track of whether there's a null with a bool, then check it after looping through the table and handle it. '' (an empty string) 0 (0 as an integer) 0.0 (0 as a float) '0' (0 as a string) NULL FALSE array () (an empty array) var (a variable declared, but without a value) For more details check empty function. ) Another possible way to accomplish this is to use an expression in your query to returns zeroes instead of nulls. (See the Warning box in the foreach documentation. ![]() Ive tried arraymap, arrayfilter, and arraywalk, but to no avail. I thought it might have to do with scope, so i created the variable before the loop, but it still doesnt work. The following things are considered to be empty. Variable handling Variable handling Functions Change language: Submit a Pull Request Report a Bug empty (PHP 4, PHP 5, PHP 7, PHP 8) empty Determine whether a variable is empty Description empty ( mixed var ): bool Determine whether a variable is considered to be empty. You should unset the reference after the foreach loop. Im trying to replace empty field values with NULL, but cant seem to figure out how to do it. A value of true, false, numbers or strings is not considered empty. I have stepped through it with Netbeans/xdebug and watching the variable, the loop works fine, it creates what I want, but as soon as it exits the loop, the watch says the variable is null. Note: to all the people complaining about typecast, please note that the OP asked cleanest way to skip a foreach if array is empty (emphasis is mine). After it finishes the loop, the $qryStr variable is set to null. ![]() ![]() Im having a bit of weird trouble, Im generating a string in a Foreach loop. Hi, Im new to PHP, I have to use it for a Uni assignment. ![]()
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