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How to convert string to boolean php

...uate to boolean true unless they have a value that's considered "empty" by PHP (taken from the documentation for empty): "" (an empty string); "0" (0 as a string) If you need to set a boolean based on the text value of a string, then you'll need to check for the presence or otherwise of that val...
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How do you create a Distinct query in HQL

Is there a way to create a Distinct query in HQL. Either by using the "distinct" keyword or some other method. I am not sure if distinct is a valid keywork for HQL, but I am looking for the HQL equivalent of the SQL keyword "distinct". ...
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What is Common Gateway Interface (CGI)?

...onment variables. In your case you most likely used another, specific for PHP, means of communication between your scripts and the webserver, this, as you well mention in your question, is an embedded interpreter called mod_php. So, answering your questions: What exactly is CGI? See above. ...
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PHP Pass by reference in foreach [duplicate]

...); foreach ($a as &$v) { } foreach ($a as $v) { echo $v.'-'.$a[3].PHP_EOL; } As you can see, the last array item takes the current loop value: 'zero', 'one', 'two', and then it's just 'two'... : ) share |...
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How do I get the current date and time in PHP?

Which PHP function can return the current date/time? 38 Answers 38 ...
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Best Practices: working with long, multiline strings in PHP?

...ne string. $var EOT; The difference between Heredoc and Nowdoc is that PHP code embedded in a heredoc gets executed, while PHP code in Nowdoc will be printed out as is. $var = "foo"; $text = <<<'EOT' My $var EOT; In this case $text will have the value My $var. Note: before the clo...
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PHP function to generate v4 UUID

...been trying to piece together a function that generates a valid v4 UUID in PHP. This is the closest I've been able to come. My knowledge in hex, decimal, binary, PHP's bitwise operators and the like is nearly non existant. This function generates a valid v4 UUID up until one area. A v4 UUID should b...
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Convert PDF to clean SVG? [closed]

...File Script references Hidden features of Windows batch files SS64.com - Index of the Windows CMD command line Why is the FOR /f loop in this batch script evaluating a blank line? XML tag/attribute replacement research How can you find and replace text in a file using the Windows command-line ...
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how do I use the grep --include option for multiple file types?

... --include flags. This works for me: grep -r --include=*.html --include=*.php --include=*.htm "pattern" /some/path/ However, you can do as Deruijter suggested. This works for me: grep -r --include=*.{html,php,htm} "pattern" /some/path/ Don't forget that you can use find and xargs for this so...
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Convert audio files to mp3 using ffmpeg

...cluded if the source would be a video file -ar - Set the audio sampling frequency. For output streams it is set by default to the frequency of the corresponding input stream. For input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding...