Fix php error.
Fix php error.

bellatl/FoundationPress,colin-marshall/FoundationPress,zeppytoh/cruorgsg-fp,bellatl/FoundationPress,linuxbastard/FoundationPress,colin-marshall/FoundationPress,randmanrjr/FoundationPress-randman,randmanrjr/FoundationPress-randman,olefredrik/FoundationPress,linuxbastard/FoundationPress,davenaylor/FoundationPress,olefredrik/FoundationPress,davenaylor/FoundationPress,zeppytoh/cruorgsg-fp