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Error Identifiers: impure.*

There are 20 error identifiers in the impure.* group:

• impure.betweenPhpTags
  Pure function contains HTML output between PHP tags.
• impure.die
  Pure function uses die, which terminates the process as a side effect.
• impure.echo
  Pure function uses echo, which produces output as a side effect.
• impure.eval
  Pure function uses eval, which can execute arbitrary code with side effects.
• impure.exit
  Pure function uses exit, which terminates the process as a side effect.
• impure.functionCall
  Pure function calls an impure function.
• impure.global
  Pure function accesses a global variable via the global keyword.
• impure.include
  Pure function uses include, which reads and executes a file.
• impure.methodCall
  Pure function calls an impure method.
• impure.new
  Pure function instantiates a class with an impure constructor.
• impure.print
  Pure function uses print, which produces output as a side effect.
• impure.propertyAssign
  Pure function assigns a property, which is a side effect.
• impure.propertyAssignByRef
  Pure function creates a reference to a property, which may cause side effects.
• impure.propertyUnset
  Pure function unsets a property, which modifies object state.
• impure.require
  Pure function uses require, which reads and executes a file.
• impure.static
  Pure function uses a static variable, which persists state between calls.
• impure.staticPropertyAccess
  Pure function accesses a static property, which is shared mutable state.
• impure.superglobal
  Pure function accesses a superglobal variable.
• impure.yield
  Pure function uses yield, which creates stateful generator behavior.
• impure.yieldFrom
  Pure function uses yield from, which creates stateful generator behavior.