1 | <?php |
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9 | class StreamStub implements StreamInterface |
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10 | { |
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11 | |||
12 | /** |
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13 | * Reads all data from the stream into a string, from the beginning to end. |
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14 | * |
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15 | * This method MUST attempt to seek to the beginning of the stream before |
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16 | * reading data and read the stream until the end is reached. |
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17 | * |
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18 | * Warning: This could attempt to load a large amount of data into memory. |
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19 | * |
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20 | * This method MUST NOT raise an exception in order to conform with PHP's |
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21 | * string casting operations. |
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22 | * |
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23 | * @see http://php.net/manual/en/language.oop5.magic.php#object.tostring |
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24 | * @return string |
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25 | */ |
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26 | public function __toString() |
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30 | |||
31 | /** |
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32 | * Closes the stream and any underlying resources. |
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33 | * |
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34 | * @return void |
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35 | */ |
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36 | public function close() |
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40 | |||
41 | /** |
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42 | * Separates any underlying resources from the stream. |
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43 | * |
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44 | * After the stream has been detached, the stream is in an unusable state. |
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45 | * |
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46 | * @return resource|null Underlying PHP stream, if any |
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47 | */ |
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48 | public function detach() |
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52 | |||
53 | /** |
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54 | * Get the size of the stream if known. |
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55 | * |
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56 | * @return int|null Returns the size in bytes if known, or null if unknown. |
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57 | */ |
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58 | public function getSize() |
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62 | |||
63 | /** |
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64 | * Returns the current position of the file read/write pointer |
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65 | * |
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66 | * @return int Position of the file pointer |
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67 | * @throws \RuntimeException on error. |
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68 | */ |
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69 | public function tell() |
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73 | |||
74 | /** |
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75 | * Returns true if the stream is at the end of the stream. |
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76 | * |
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77 | * @return bool |
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78 | */ |
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79 | public function eof() |
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83 | |||
84 | /** |
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85 | * Returns whether or not the stream is seekable. |
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86 | * |
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87 | * @return bool |
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88 | */ |
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89 | public function isSeekable() |
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93 | |||
94 | /** |
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95 | * Seek to a position in the stream. |
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96 | * |
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97 | * @link http://www.php.net/manual/en/function.fseek.php |
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98 | * @param int $offset Stream offset |
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99 | * @param int $whence Specifies how the cursor position will be calculated |
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100 | * based on the seek offset. Valid values are identical to the built-in |
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101 | * PHP $whence values for `fseek()`. SEEK_SET: Set position equal to |
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102 | * offset bytes SEEK_CUR: Set position to current location plus offset |
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103 | * SEEK_END: Set position to end-of-stream plus offset. |
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104 | * @throws \RuntimeException on failure. |
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105 | */ |
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106 | public function seek($offset, $whence = SEEK_SET) |
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110 | |||
111 | /** |
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112 | * Seek to the beginning of the stream. |
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113 | * |
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114 | * If the stream is not seekable, this method will raise an exception; |
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115 | * otherwise, it will perform a seek(0). |
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116 | * |
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117 | * @see seek() |
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118 | * @link http://www.php.net/manual/en/function.fseek.php |
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119 | * @throws \RuntimeException on failure. |
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120 | */ |
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121 | public function rewind() |
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125 | |||
126 | /** |
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127 | * Returns whether or not the stream is writable. |
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128 | * |
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129 | * @return bool |
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130 | */ |
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131 | public function isWritable() |
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135 | |||
136 | /** |
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137 | * Write data to the stream. |
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138 | * |
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139 | * @param string $string The string that is to be written. |
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140 | * @return int Returns the number of bytes written to the stream. |
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141 | * @throws \RuntimeException on failure. |
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142 | */ |
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143 | public function write($string) |
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147 | |||
148 | /** |
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149 | * Returns whether or not the stream is readable. |
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150 | * |
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151 | * @return bool |
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152 | */ |
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153 | public function isReadable() |
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157 | |||
158 | /** |
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159 | * Read data from the stream. |
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160 | * |
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161 | * @param int $length Read up to $length bytes from the object and return |
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162 | * them. Fewer than $length bytes may be returned if underlying stream |
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163 | * call returns fewer bytes. |
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164 | * @return string Returns the data read from the stream, or an empty string |
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165 | * if no bytes are available. |
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166 | * @throws \RuntimeException if an error occurs. |
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167 | */ |
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168 | public function read($length) |
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172 | |||
173 | /** |
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174 | * Returns the remaining contents in a string |
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175 | * |
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176 | * @return string |
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177 | * @throws \RuntimeException if unable to read or an error occurs while |
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178 | * reading. |
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179 | */ |
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180 | public function getContents() |
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184 | |||
185 | /** |
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186 | * Get stream metadata as an associative array or retrieve a specific key. |
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187 | * |
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188 | * The keys returned are identical to the keys returned from PHP's |
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189 | * stream_get_meta_data() function. |
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190 | * |
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191 | * @link http://php.net/manual/en/function.stream-get-meta-data.php |
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192 | * @param string $key Specific metadata to retrieve. |
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193 | * @return array|mixed|null Returns an associative array if no key is |
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194 | * provided. Returns a specific key value if a key is provided and the |
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195 | * value is found, or null if the key is not found. |
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196 | */ |
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197 | public function getMetadata($key = null) |
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201 | } |