Niekedy sa oplatí robiť stránky tak, že najprv sa hráš čisto len v PHP, všetky veci, ktoré chceš vypisovať si ukladáš do jednej (alebo aj viacerých) premennej a až na úplnom konci tú premennú vypíšeš. Potom sa ti nestane, že by si hlavičky odoslal skôr ako by si naozaj chcel a potreboval.
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A. S. Tanenbaum píše:
The terms LF, MF, and HF refer to low, medium, and high frequency, respectively. Clearly, when the names were assigned, nobody expected to go above 10 MHz, so the higher bands were later named the Very, Ultra, Super, Extremely, and Tremendously High Frequency bands. Beyond that there are no names, but Incredibly, Astonishingly, and Prodigiously high frequency (IHF, AHF, and PHF) would sound nice.
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