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PHP: How to check if image file exists?

.../'.$filename)) { … } Also, make sure $filename is properly validated. And then, it will only work when allow_url_fopen is activated in your PHP config share | improve this answer | ...
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What is the difference between gmake and make?

I am trying to understand the difference between 'gmake' and 'make'? 4 Answers 4 ...
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How to compare a local git branch with its remote branch?

How can I see the diff between a local branch and a remote branch? 22 Answers 22 ...
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How to open an elevated cmd using command line for Windows?

How do I open a elevated command prompt using command lines on a normal cmd? 22 Answers ...
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Print an integer in binary format in Java

I have a number and I want to print it in binary. I don't want to do it by writing an algorithm, Is there any built-in function for that in Java? ...
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Is it a good practice to use try-except-else in Python?

...ntrol." In the Python world, using exceptions for flow control is common and normal. Even the Python core developers use exceptions for flow-control and that style is heavily baked into the language (i.e. the iterator protocol uses StopIteration to signal loop termination). In addition, the try...
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How to check size of a file using Bash?

...lly 100k; how to make a script check if it is less than 90k (including 0), and make it do wget a new copy because the file is corrupt in this case. ...
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AngularJS - Access to child scope

...e the interpreter will look up the prototype chain starting from the child and continue to the parents until it finds the property, not the other way around. Check Vojta's comments on the issue https://groups.google.com/d/msg/angular/LDNz_TQQiNE/ygYrSvdI0A0J In a nutshell: You cannot access child...
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what is the right way to treat Python argparse.Namespace() as a dictionary?

...t is okay to access the __dict__ attribute. It is a well-defined, tested, and guaranteed behavior. share | improve this answer | follow | ...
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Java - escape string to prevent SQL injection

I'm trying to put some anti sql injection in place in java and am finding it very difficult to work with the the "replaceAll" string function. Ultimately I need a function that will convert any existing \ to \\ , any " to \" , any ' to \' , and any \n to \\n so that when the string is e...