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54 ” pecl_http PECL Extension Debugging Debugging transmitted requests and responses with pecl_http is actually pretty simple. Configure and send a request, then call the getRawRequestMessage and getRawResponseMessage methods on the request instance as sho wn belo w . T imeouts As with cURL, pecl_http has options for handling timeouts. The ’timeout’ request option, which corresponds to CURLOPT_TIMEOUT, is the maximum number of seconds an entire request may take before timing out. Likewise the ’connecttimeout’ request option, the counterpart for CURLOPT_CONNECTTIMEOUT, is the maximum number of seconds that a connection attempt, which includes DNS resolution, may take. Finally the ’dns_cache_timeout’ request option, which is equivalent to CURLOPT_DNS_CACHE_TIMEOUT, is the maximum number of seconds that a DNS cache entry will be retained and defaults to 120 seconds (two minutes). Content Encoding If you are unfamiliar with content encoding, see “ Content Encoding” in Chapter 8 for more information. To enable it when using pecl_http , the ’compress’ request option must be set to true.
pecl_http PECL Extension ” 55 N ote that this requires libz support to be enabled. You can check for this by executing the phpinfo function within a PHP script or running php -ri http from command line. If libz support is not enabled, the technique detailed in Chapter 8 for handling encoded content can be used on the return value of the request object’s getResponseBody method. Cookies • Like cURL, pecl_http allo ws cookie data to be specified manually. U nlike cURL, pecl_http handles most of the formatting for you. Simply specify an
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vi ” CONTENTS Referring URLs . .
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viii ” CONTENTS HTTP Authenticati
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x ” CONTENTS Chapter 14 — PCRE
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For ewor d W eb scraping is the fut
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Chapter 1 Introduction If you are l
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PCRE Extension ” 145 Anchors Y o
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PCRE Extension ” 147 // Matches
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PCRE Extension ” 149 if (preg_mat
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A p p e n d i x A Legality of W e S
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