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18 Cards in this Set
- Front
- Back
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Use this function to find out how many elements an array contains |
sizeof($array) |
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Use this function to retrieve all the values from an associative array |
array_values($array) |
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Use this function to retrieve all the keys from an associative array |
array_keys($array) |
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Use this function to remove an element from the end of an array |
array_pop($array) |
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This function adds an element to the end of an array |
array_push($array, $value) |
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This function removes an element from the beginning of an array |
array_shift($array) |
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This function adds an element to the beginning of an array |
array_unshift($array, $value) |
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This function returns an array containing all the elements of array1 after applying the callback function to each one. You can pass more than one array. The number of parameters that the callback function accepts should match the number of arrays passed to the array_map() |
array_map($callback, $array1) |
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This function sorts the elements of an array in ascending order. String values will be arranged in ascending alphabetical order. Other sorting functions include asort(), arsort(), ksort(), krsort() and rsort() |
sort($array) |
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This function reverses the order of elements in an array |
array_reverse($array) |
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Use this function when you need to combine data from two or more arrays into a single structure |
array_merge($array) |
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This function selects one or more random elements from an array |
array_rand($array) |
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This function searches the values in an array for a match to the search term, and returns the corresponding key if found. If more than one match exists, the key of the first matching value is returned |
array_search($search, $array) |
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Use this function to break a larger array into smaller ones |
array_slice($array, $offset, $length) |
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Use this function when you need to remove non-unique elements from an array |
array_unique($array) |
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Import variables into the current symbol table from an array. For Better understanding read the doc about this function. It is very nice. Its opposite is compact() |
extract($array) |
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This functions returns TRUE if the given key is set in the array |
array_key_exists($key, $array) |
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This functions returns TRUE if the given value exists in the array |
in_array($searched_value, $array) |
