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Everything posted by codexpower

  1. What I remember from my college days is that isset check whether the variable has a value set or not and return true or false value. However I encountered a code in wordpress - // Set up the content width value based on the theme's design and stylesheet. if ( ! isset( $content_width ) ) $content_width = 625; Here why is this sign used ! This sign is actually not equal to, Right?
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