query: PHP Undefined variable
positive_passages.docid: 2005
positive_passages.text: "Notice: Undefined variable", "Notice: Undefined index", and "Notice: Undefined offset" using PHP
negative_passages.docid: 34563
negative_passages.text: Why does PHP consider 0 to be equal to a string?
negative_passages.docid: 5123
negative_passages.text: PHP variable variables
negative_passages.docid: 108661
negative_passages.text: In php, is 0 treated as empty?
negative_passages.docid: 29365
negative_passages.text: PHP Session variables disappearing?
negative_passages.docid: 134881
negative_passages.text: Transfer variables between PHP pages
negative_passages.docid: 14660
negative_passages.text: Undefined variable as function argument javascript
negative_passages.docid: 112579
negative_passages.text: How to pass jQuery variables to PHP variable?
negative_passages.docid: 2700
negative_passages.text: php - insert a variable in an echo string
negative_passages.docid: 5813
negative_passages.text: Getting a POST variable
negative_passages.docid: 90598
negative_passages.text: PHP considers null is equal to zero
negative_passages.docid: 14596
negative_passages.text: Are PHP Variables passed by value or by reference?
negative_passages.docid: 27136
negative_passages.text: Reference: What is variable scope, which variables are accessible from where and what are "undefined variable" errors?
negative_passages.docid: 112144
negative_passages.text: variable-variables in PHP
negative_passages.docid: 52
negative_passages.text: Pass PHP variables to Javascript/jquery
negative_passages.docid: 155070
negative_passages.text: php session variable lost
negative_passages.docid: 60338
negative_passages.text: Null vs. False vs. 0 in PHP