大约有 17,000 项符合查询结果(耗时:0.0373秒) [XML]

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How can I check if a string represents an int, without using try/except?

...o only use it for error trapping and reporting. I was going to gripe that PHP, perl, ruby, C, and even the freaking shell have simple functions for testing a string for integer-hood, but due diligence in verifying those assumptions tripped me up! Apparently this lack is a common sickness. Here'...
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Text Editor which shows \r\n? [closed]

...han installing any application for sure. In command line with proper setup PHP php -q <?php $t=file_get_contents("filename"); echo str_replace(array("\n", "\r"), array("\\n", "\\r"), $t); ?> share | ...
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Windows batch: echo without new line

...ding = causes a syntax error. See http://www.dostips.com/forum/viewtopic.php?f=3&t=4209 for more information. jeb posted a clever solution that solves most of the problems at Output text without linefeed, even with leading space or = I've refined the method so that it can safely print absolut...
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What is this Javascript “require”?

... The equivalent in PHP would be include/require[_once] (php.net link), not use, which is an aliasing keyword. – nevvermind Apr 2 '19 at 12:39 ...
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Facebook Android Generate Key Hash

...e required SHA1 Key Then goto http://tomeko.net/online_tools/hex_to_base64.php and paste your sha1 key and finally you will get Required HashKey which you can use it to apply on facebook. share | i...
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jQuery/Javascript function to clear all the fields of a form [duplicate]

... <form id="form" method="post" action="action.php"> <input type="text" class="removeLater" name="name" /> Username<br/> <input type="text" class="removeLater" name="pass" /> Password<br/> <input type="text" class="removeLat...
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Real escape string and PDO [duplicate]

...escape_string() with the PDO::quote() method. Here is an excerpt from the PHP website: <?php $conn = new PDO('sqlite:/home/lynn/music.sql3'); /* Simple string */ $string = 'Nice'; print "Unquoted string: $string\n"; print "Quoted string: " . $conn->quote($string) . "\n";...
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How to write an inline IF statement in JavaScript?

..., which one depends on the type of operator. Certain other languages, like PHP, carry on the actual result of the operation i.e. true or false, meaning the result is always true or false; e.g: 14 && 0 /// results as 0, not false 14 || 0 /// results as 14, not true 1 &...
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How to inherit from a class in javascript?

In PHP/Java one can do: 15 Answers 15 ...
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Why would a JavaScript variable start with a dollar sign? [duplicate]

... the dollar script sign (in Javascript and the jQuery platform, but not in PHP) is completely semantic. $ is a character that can be used as part of an identifier name. In addition, the dollar sign is perhaps not the most "weird" thing you can encounter in Javascript. Here are some examples of valid...