How do I know if I have mcrypt installed? You can use function_exists to check if one of the mcrypt functions exists. You can also achieve this same…

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You should always surround your PHP code with and end your statements with semicolons (;). Functions or keywords aren’t case-sensitive, but variables are. Where do I put PHP…

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According to the Java Primitive Data Types tutorial: char: The char data type is a single 16-bit Unicode character. It has a minimum value of ‘u0000’ (or 0)…

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Its a bitwise OR assignment operator. See PHP menual $var1 |= $var2 //it means $var1 = $var1 or $var2. What does === mean in PHP? The comparison operator…

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