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Why a function checking if a string is empty always returns true? [closed]

...if ($strTemp !== '') since != '' will return true if you pass is numeric 0 and a few other cases due to PHP's automatic type conversion. You should not use the built-in empty() function for this; see comments and the PHP type comparison tables. ...
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What is SYSNAME data type in SQL Server?

... 150 sysname is a built in datatype limited to 128 Unicode characters that, IIRC, is used primarily t...
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How to check if a process id (PID) exists

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How to convert a string to an integer in JavaScript?

...simplest way would be to use the native Number function: var x = Number("1000") If that doesn't work for you, then there are the parseInt, unary plus, parseFloat with floor, and Math.round methods. parseInt: var x = parseInt("1000", 10); // you want to use radix 10 // so you get a decimal n...
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How to create circle with Bézier curves?

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How to change UIPickerView height

...time, e.g: smallerPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 120.0)]; You will discover that at various heights and widths, there are visual glitches. Obviously, these glitches would either need to be worked around somehow, or choose another size that doesn't exhibit ...
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How to check whether a file is empty or not?

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Programmatically generate video or animated GIF in Python?

... | edited Jul 21 '16 at 4:03 Matt Bierner 29.1k66 gold badges8585 silver badges125125 bronze badges answ...
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Achieving bright, vivid colors for an iOS 7 translucent UINavigationBar

... iOS 7.0.3 UPDATE: As you see above 7.0.3 changed things. I've updated my gist. Hopefully this will just go away as people upgrade. Original Answer: I ended up with a hack combining the two of the other answers. I'm subclassing UIN...
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Angularjs Template Default Value if Binding Null / Undefined (With Filter)

... edited Mar 11 '14 at 21:41 0xcaff 9,82033 gold badges3939 silver badges5353 bronze badges answered May 13 '13 at 13:27 ...