Exclamation mark in front of variable - clarification needed. I've been working with PHP for quite a while now, but this was always a mystery to me, the correct use of the exclamation mark (negative sign) in front of variables. What does !$var indicate? Is var false, empty, not set etc.?
Lancaster is a city in Dallas County, Texas, United States. The population was 25,894 at the 2000 census. Locally, Lancaster is pronounced LANK-ist-er or LANK-us-ter, it is often mispronounce as LAN-CAS-ter. Lancaster is a suburb of Dallas, Texas and is part of the Best Southwest area, which includes Lancaster, Cedar Hill, DeSoto, and Duncanville. Most of the city is in Dallas County. But a extremely small southern section spills over into Ellis County.
The Lancaster County Office of the District Attorney is dedicated to achieving justice and protecting the safety of our community. We thoroughly investigate, and prosecute aggressively, but fairly, criminal activity in Lancaster County. We zealously work to bring justice and preserve the rights of crime victims. Our goal is to keep Lancaster County safe by working in acquiesce with the many law-enforcement departments within the county. In court, we seek appropriate punishment for those who perpetrate crimes, keeping the victims and safety of the public at the forefront of our efforts.