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Check if $_POST m>exm>ists

...ugustus Francis's answer, empty() is not correct for choice #1, because in m>phpm>, the string '0' is equivalent to false - and empty() returns true for all values equivalent to false. So using empty, the code would skip printing if the value was '0'. If you want to m>exm>clude the empty string, see Augustu...
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Overcoming “Display forbidden by X-Frame-Options”

... I had a similar issue, where I was trying to display content from our own site in an iframe (as a lightbox-style dialog with Colorbox), and where we had an server-wide "X-Frame-Options SAMEORIGIN" header on the source server preventing it from loading on our test server. Thi...
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Which kind of pointer do I use when?

...ll=\"#1BB76E\"/\u003e\u003c/svg\u003e\u003c/a\u003e", contentPolicyHtml: "User contributions licensed under \u003ca href=\"https://stackoverflow.com/help/licensing\"\u003ecc by-sa\u003c/a\u003e \u003ca href=\"https://stackoverflow.com/legal/content-policy\"\u003e(content policy)...
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m>PHPm> array delete by value (not key)

I have a m>PHPm> array as follows: 18 Answers 18 ...
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MySQL: Fastest way to count number of rows

...ach time you try to count all rows. (based on primary key's column) Using m>PHPm> to count rows is not very smart, because you have to send data from mysql to m>phpm>. Why do it when you can achieve the same on the mysql side? If the COUNT(*) is slow, you should run m>EXm>PLAIN on the query, and check if inde...
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How to display HTML tags as plain tm>exm>t [duplicate]

... If the question's tm>exm>t were to be generated by m>PHPm>, htmlspecialchars() does what this answer suggests: replace the less-than and greater-than signs (and others) with their HTML entities. But the question does not specify, so this more general answer is a superset of all t...
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How to show multiline tm>exm>t in a table cell

..., if you can change your markup, you can use a <pre> tag around your content. By default web browsers use their user-agent stylesheet to apply the same white-space:pre rule to this element. The PRE element tells visual user agents that the enclosed tm>exm>t is "preformatted". When handling pre...
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How to pass command line arguments to a shell alias? [duplicate]

...ut bash and the Korn shell don't, because the function mechanism is more flm>exm>ible and offers the same capability. share | improve this answer | follow | ...
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Sending emails with Javascript

...ndabout way of doing this when you can just set href attribute to the same content instead of using javascript. – Ryan Doherty Nov 7 '08 at 3:43 1 ...
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How to print an m>exm>ception in Python?

How can I print the error/m>exm>ception in my m>exm>cept: block? 8 Answers 8 ...