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Convert C string to upper case

C: convert string to lowercase and uppercase

Leave a Comment / Algorithms, C programming language / parzibyte

Introduction Today we will see how to convert a string in C to uppercase. We will also see how to convert a string to lowercase. That is, to convert something like “Hello World” to “hello world”. Or something like “Good night” to “GOOD NIGHT”. For this we will use some functions that the standard library […]

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Python: check if item or value exists in list or array

Leave a Comment / Python / parzibyte

Introduction Sometimes we need to know if an element or value is within a list or array in Python. There may be a need to simply know if it exists, but it is also possible that we need to obtain the position of an element, that is, its index. Today we will see how to

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PHP: Generate cryptographically secure token

Leave a Comment / Algorithms, PHP, Security / parzibyte

Intro Sometimes we need to create a random string or token using PHP. For example, it’s quite common that when we want to reset our password on some website a message is sent to the mail we registered. Probably the message have a link like this: site.com/reset-pass?token=123 Where 123 is the token. Today we will

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