escaping

问题 How is that possible to use double quotes inside PHP echo double quotes? The class "problem" is a problem. echo " new function('<span class="problem"></span>');"; 回答1: try like this.. echo "new function('<span class=\"problem\"></span>');"; i hope it will work 回答2: Try this way echo <<<END All the text u wanna echo u can use double and single quotes END; 来源： https://stackoverflow.com/questions/50781770/echo-double-quotes-inside-double-quotes-issue

问题 I have a question, why does this: testStr="\n" testStr = "\\"+testStr print testStr >>> \ happen? Shouldn't it now print \n ? I know about the repr() function, but I would rather solve this in another way It would be very kind if you could help me 回答1: After you type testStr = "\n" the special characters are already being interpreted. So in the next line you cannot change their interpretation as it already has happened. This is being done during lexical analysis stage, so even way before the

问题 Is there a regex to replace the outer part of a string while keeping the inner part? before: ${person.dog.name} after: <c:out value="${person.dog.name}"/> I need to use it in Eclipse editor, and the inner part changes. This can be useful too: Search: \$\{(.*?)\} Replace: \$\{fn:escapeXml\($1\)\} ${person.dog.name} become ${fn:escapeXml(person.dog.name)} 回答1: Find expression with: (\$\{[^\}]+\}) and replace expression will be: <c:out value="$1"/> To find ${person.dog.name} with <c:out value="$

问题 I want to use the QString.split(' ') method to split a input command into the command QStringList commandList = command.split(' '); however command has a UNIX path at the end of it. i.e. it looks something like QString command = new QString("caommand -a -b /path/to\ specific/file"); the path command is specified by the user at runtime(the user escapes any spaces in the path). For some reason command.split(' '); does not escape the spaces. I am new to QT, how does it escape spaces? Thanks for

问题 Please note I'm developing this using NetBeans under Windows. I'm also running JDK 1.8. The program takes a few arguments, via the command-line. One argument is a file path. The user might type -i C:\test . How do I escape the slash? Nothing seems to work right. public class Test { public static void main(String[] args) throws FileNotFoundException, ParseException { // Simulate command line execution String[] arguments = new String[] { "-i C:\test" }; // Create Options object Options options

问题 "The Unix Programming Environment" states that '$' used in regular expression in sed means end-of-the line which is fine for me, because cat file | sed 's/$/\n/' is interpretted as "add newline at the end of each line". The question arises, when I try to use the command: cat file | sed '$d' Shouldn't this line remove each line instead of the last one? In this context, dollar sign means end of the LAST line. What am I getting wrong? 回答1: Note that regex in sed must be inside the delimiters( ;

问题 I need help with Camel. I prepared some rest service, but I have small problem with response. My response contains escape sequence before ". Could anyone help me with this problem? My configuration: restConfiguration().port("{{rest_port}}").component("jetty").host("localhost").bindingMode(RestBindingMode.json); rest("/login").post().bindingMode(RestBindingMode.json).produces("application/json").consumes("application/json").to("direct:login-rest"); from("direct:login-rest") .choice() .when

问题 function escape($value){ $magic_quotes_active = get_magic_quotes_gpc(); $new_enough_php = function_exists("mysql_real_escape_string"); if ($new_enough_php) { if ($magic_quotes_active) { $value = stripslashes($value); $value = mysql_real_escape_string($value); } elseif (!$magic_quotes_active) { $value = addslashes($value); } return $value; } } For a long time I have been using above function for escaping string ? Now, I want to ask that do I need to use that function (I found that over

问题 $dagen = array( 'Mon' => 'Maandag', 'Tue' => 'Dinsdag', 'Wed' => 'Woensdag', 'Thu' => 'Donderdag', 'Fri' => 'Vrijdag', 'Sat' => 'Zaterdag', 'Sun' => 'Zondag' ); foreach ($xml->verwachtingen->verwachting as $verwachting) { $graden = $verwachting->maxtempGRC - $verwachting->mintempGRC; $graden = $graden / 2; $graden = $graden + $verwachting->mintempGRC; $dag = $verwachting->dagvdweek; echo 'Op '. $dagen[$dag] .' wordt het '. $graden .' graden'; } $xml is the XML document loaded using

问题 I want to restrict usage of unescaped ampersands in a particular input field. I'm having trouble getting a RegEx to kill usage of "&" unless followed by "amp;"...or perhaps just restrict usage of "& " (note the space). I tried to adapt the answer in this thread, but to no avail. Thanks. (FWIW, here's a RegEx I made to ensure that a filename field didn't contain restrited chars. and ended in .mp3. It works fine, but does it look efficient?) ^[^&,<,>,:,",/,\\,|,?,\*]+(\.mp3|\.MP3|\.Mp3|\.mP3)$