note 55597 deleted from function.strtoupper by nlopess

From: Date: Sun, 20 May 2007 13:41:19 +0000
Subject: note 55597 deleted from function.strtoupper by nlopess
References: 1  Groups: php.notes 
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Note Submitter: ascheinberg at gmail dot com ---- I've searched high and low for a function to test whether or not a string is uppercase. I wrote this little function to do that. Set $char equal to the position of the character you want to test, 0 for just the first letter, or -1 to test if there are any caps at all in the string. This functions returns TRUE if the character(s) are uppercase or FALSE if the output is not uppercase. function is_uppercase($str,$char='-1') { if($char==-1) { if(strtolower($str) != $str) { return TRUE; } else { return FALSE; } } else { if(strtolower($str{$char}) != $str{$char}) { return TRUE; } else { return FALSE; } } } How to Use This function: $test = is_uppercase("Test",-1); //returns TRUE $test = is_uppercase("Test",0); //returns TRUE $test = is_uppercase("Test",1); //returns FALSE $test = is_uppercase("this is a string!"); //returns FALSE $test = is_uppercase("this is a string!",-1); //returns FALSE $test = is_uppercase("this is a string!",5); //returns FALSE

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