length php



the reason being that will return . so how do you know if the value was null, or truly an empty string? <?php $foo = null; $len = strlen(null); $bar = ''; echo "length: " . strlen($foo) . " "; echo "length: $len "; echo "length: " . strlen(null) . " "; if (strlen($foo) === ) echo 'null length is zero '; return value: returns the length of a string on success, and if the string is empty. php version: . changelog: before php .., this function treated arrays as the string array, thus returning a string length of and emitting an e_notice level error. parameter, description. array, required. specifies the array. mode, optional. specifies the mode. possible values: default. does not count all elements of multidimensional arrays; counts the array recursively (counts all the elements of multidimensional arrays) 

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parameter, description. array, required. specifies the array. mode, optional. specifies the mode. possible values: default. does not count all elements of multidimensional arrays; counts the array recursively (counts all the elements of multidimensional arrays)  a protip by samdev about php, string, sequence, length, multibyte, strlen, and mb_strlen. maybe: $num = ; $numlength = strlen((string)$num);.

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try the common syntax instead: if (strlen($message)) { echo "more than "; } else { echo "exactly "; }. you can use count() or sizeof() php functions like if(sizeof($result) > ){ echo "array size is greater then zero"; }else{ echo "array size is zero"; }. or you can use if(count($result) > ){ echo "array size is greater then zero"; }else{ echo "array size is zero"; }. i hope it will help you. it's fine. for example, let's run the following: <?php $message = "hello there!"; if (strlen($message) it will print: "it is greater than characters.". answer: use the php strlen() function. you can use the php strlen() to get the length of a string. the strlen() function return the length of the string on success, and if the string is empty.

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