Programming PHP

explode
array explode(string separator, string string[, int limit])
Returns an array of substrings created by splitting string wherever separator is found. If
supplied, a maximum of limit substrings will be returned, with the last substring returned
containing the remainder of the string. If separator is not found, returns the original string.
extension_loaded
bool extension_loaded(string name)
Returns true if the named extension is loaded or false if it is not.
extract
int extract(array array[, int type[, string prefix]])
Sets the value of variables to the values of elements from an array. For each element in the
array, the key is used to determine the variable name to set, and that variable is set to the
value of the element.
The second argument, if given, takes one of the following values to determine behavior if
the values in the array have the same name as variables already existing in the local scope:
The function returns the number of successfully set variables.
fclose
bool fclose(int handle)
Closes the file referenced by handle; returns true if successful and false if not.
feof
EXTR_OVERWRITE (default) Overwrite the existing variable
EXTR_SKIP Don’t overwrite the existing variable (ignore the value
provided in the array)
EXTR_PREFIX_SAME Prefix the variable name with the string given as the
third argument
EXTR_PREFIX_ALL Prefix all variable names with the string given as the
third argument
EXTR_PREFIX_INVALID Prefix any invalid or numeric variable names with the
string given as the third argument
int feof(int handle)
Returns true if the marker for the file referenced by handle is at the end of the file (EOF) or
if an error occurs. If the marker is not at EOF, returns false.
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