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PHP - concatenate or directly insert variables in string

I am wondering, What is the proper way for inserting PHP variables into a string? This way: 14 Answers ...
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Which one is the best PDF-API for PHP? [closed]

Which one of these is the best PDF-API for PHP? 9 Answers 9 ...
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How does Python's super() work with multiple inheritance?

...nable amount of detail by Guido himself in his blog post Method Resolution Order (including two earlier attempts). In your example, Third() will call First.__init__. Python looks for each attribute in the class's parents as they are listed left to right. In this case, we are looking for __init__. S...
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Cron jobs and random times, within given hours

...m, it'd be a little more complicated to randomize the seconds as well. Finally, since the start times are random and independent of each other, it's possible (but not very likely) that two or more instances of the script will be started simultaneously. ...
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How to get the first word of a sentence in PHP?

... Using modern PHP syntax you can just do explode(' ',trim($myvalue))[0] – Elly Post Apr 1 '16 at 6:28 2 ...
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How can I access an object property named as a variable in php?

...name" is used without the quotes. Seems to be working, but is it for newer php versions only? – Lamy Mar 10 '15 at 14:01 ...
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PHP: merge two arrays while keeping keys instead of reindexing?

...operator is not an addition, it's a union. If the keys don't overlap then all is good, but if they do... – GordonM May 3 '12 at 15:46 3 ...
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Which characters are valid in CSS class names/selectors?

What characters/symbols are allowed within the CSS class selectors? I know that the following characters are invalid , but what characters are valid ? ...
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PHP substring extraction. Get the string before the first '/' or the whole string

I am trying to extract a substring. I need some help with doing it in PHP. 15 Answers ...
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deny directory listing with htaccess

...tings. If you are using a .htaccess file make sure you have at least the "allowoverride options" setting in your main apache config file. share | improve this answer | follo...