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Difference between “!==” and “==!” [closed]

Yesterday I stumbled over this when I modified PHP code written by someone else. I was baffled that a simple comparison ( if ($var ==! " ") ) didn't work as expected. After some testing I realized that whoever wrote that code used ==! instead of !== as comparison operator. I've never seen ==! ...
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How can one check to see if a remote file exists using PHP?

...PT_USERAGENT in addition to CURLOPT_NOBODY: davidwalsh.name/set-user-agent-php-curl-spoof – rlorenzo Aug 17 '12 at 22:30 ...
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PHPUnit assert that an exception was thrown?

... <?php require_once 'PHPUnit/Framework.php'; class ExceptionTest extends PHPUnit_Framework_TestCase { public function testException() { $this->expectException(InvalidArgumentException::class); // or f...
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Difference between array_push() and $array[] =

In the PHP manual, ( array_push ) says.. 9 Answers 9 ...
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Why doesn't Git ignore my specified file?

...epository. You can do that by using git rm --cached sites/default/settings.php. This removes the file from the repository without physically deleting the file (that’s what the --cached does). After committing that change, the file will be removed from the repository, and ignoring it should work pr...
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PHP code to remove everything but numbers

....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f6604455%2fphp-code-to-remove-everything-but-numbers%23new-answer', 'question_page'); } ); Post as a guest ...
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`Apache` `localhost/~username/` not working

... FYI, if you're trying to use PHP on Yosemite, you'll likely have to uncomment the following line from /etc/apache2/httpd.conf: LoadModule php5_module libexec/apache2/libphp5.so – Joshua Pinter Sep 6 '14 at 1:01 ...
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Get original URL referer with PHP?

...%2fstackoverflow.com%2fquestions%2f1864583%2fget-original-url-referer-with-php%23new-answer', 'question_page'); } ); Post as a guest Name ...
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How to debug PDO database queries?

Before moving to PDO, I created SQL queries in PHP by concatenating strings. If I got database syntax error, I could just echo the final SQL query string, try it myself on the database, and tweak it until I fixed the error, then put that back into the code. ...
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How to check that a string is an int, but not a double, etc.?

PHP has an intval() function that will convert a string to an integer. However I want to check that the string is an integer beforehand, so that I can give a helpful error message to the user if it's wrong. PHP has is_int() , but that returns false for string like "2" . ...