php strlen



php strlen

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the reason being that <?php strlen(null); ?> 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 ';

php strlen

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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.

php strlen

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manuel php strlen calcule la taille d'une chaîne.

php strlen

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a protip by samdev about php, string, sequence, length, multibyte, strlen, and mb_strlen.

php strlen

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essai strlen en ligne. retourne la taille de la chaîne $string.

php strlen

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strlen() is not handling multibyte characters correctly, as it assumes char equals byte, which is simply invalid for unicode. this behavior is documented here: php.net/strlen. strlen() returns the number of bytes rather than the number of characters in a string. solution is to use mb_strlen() function 

php strlen

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déc. yes, there is an important difference. the == operator does type conversion, so it's not always going to do what you expect. for example, ( == "") returns true. so you're making an assumption that $str is actually a string. if you're sure this is the case, or if you don't care about the conversions, then it's fine.

php strlen

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online php functions. strlen · strrev · base_encode · base_decode · htmlspecialchars · iplong · longip · md · md · crc · nlbr · sha · sha · sha · sha · str_rot · urlencode · urldecode · addslashes · stripslashes · strip_tags · trim · pathinfo · dirname · basename · date · date_parse · trigonometric functions 

php strlen

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c programming function: strlen() from wresource.

php strlen

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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.